I know people are not going to like this but probably the most effective means and method here is ignore it! I do mean stop causing a problem whatever it is, but simply don’t do anything. Over time it will correct itself. Nature does this. Attempting to fix a mess too much is not a good idea.

EXAMPLE: I worked for 30 years to get Redstone Arsenal (RSA) to stop it’s pollution and to clean up. It in some cases did in the course of remediation include removal of dumped items from uncontrolled dumps to ones that were more controlled but in reality the primary cleanup is just to stop making it worse. Alabama Department of Environmental Management (ADEM) maintains about 500 test wells in the area to monitor flows and alter remediation efforts if need be. So they do intervene if something is out of hand.

The poisons in RSA are very nasty. They include persistent Nerve Agents. Dioxins and Radiologic hazards it is a very bad cocktail of chemicals. It is about as bad a mess as mankind has ever known. But messing with it would simply spread it around and make it worse. Now the mess is spreading that is why the monitoring wells. Hopefully as is spreads it will dilute itself to innocuous over probably the next century or so. I know that will take much time! My goal was to get the addition of new crap to be stopped. Over time it will and has largely become “safer” and less trouble.

But messing with it would produce an explosion of toxic stuff all over the place. I figure we will just fine one day that the problem has diffused into nothingness. But that day is not now. Much of RSA is a game refuge. Messing with it would only make things worse. They do have some areas they have had to intervene in. But in most cases it is just a case of time heals all wounds.

I first saw that mess on RSA it was so bad that the fish in the Tennessee River floated up dead in the Indian Creek outlet to the river. The creek looked sick. (hard to describe) It was so bad that when the family floated our boat into the river we actually played on the other side of the river and my mother wouldn’t even let us dip in the river even floating the boat. That’s how bad it was!

Today the fish are safe. Today the creek looks fairly normal. Again it will take more time!

I sometimes think that people who read me lighting into Environmentalist excesses and stupidity brand me as against the environment. I am a strong defender of the environment. That is actually why I attack the “Environmentalists” because they are not such. They are grifters and grafters leaching off funds and efforts that should be doing good and causing damage and being “Eco-Terrorists.” You have to step back and look and apply the test Jesus taught, “By their fruits ye shall know them.” Stop imagining that because someone carries a flag they are on the team.

There is no “nature”, like an avenging Mother Nature, out to cleanse us like we were a plague. There are just natural cycles of the biosphere, which have absolutely no free will of their own, nor any desire to eradicate us. We are PART of nature, as much as we psychologically try to deny it.

Nature has experienced far worse cataclysms than anything humanity has done so far. The breakups of the supercontinents, asteroid impacts, ice ages, supervolcano eruptions that lasted decades, magnetic field flips, she has no particular hate on for us. If there was a “she”.

No, if we screw up the biosphere to the point we can't survive as a species, it'll be OUR fault. No laying the blame on “nature” or anyone else. We'll be gone and nature will just keep on keepin' on, like we never existed.

My dear Friends! You see, ecosystems, like a well-orchestrated dance, provide essential services to humanity. Let me elucidate this for you.

Firstly, let us talk about the air we breathe. Ah, the breath of life! Ecosystems, especially our lush forests, act as the lungs of our planet. They take in carbon dioxide and release oxygen through a process called photosynthesis. So, every time you take a deep breath, remember to thank the trees for their generous contribution!

Now, let's shift our focus to water, the elixir of life. Ecosystems, including rivers, lakes, and wetlands, play a crucial role in regulating the water cycle. They absorb, filter, and store water, ensuring a steady supply for our agricultural fields and drinking needs. It's like nature's own water treatment plant!

Ah, agriculture, a vital aspect of our lives. Ecosystems provide us with fertile soil, essential for growing our crops. The intricate web of life in the soil, from tiny microbes to earthworms, helps maintain soil health and fertility. It's like a harmonious collaboration between nature and farmers!

Now, let's not forget the incredible biodiversity within ecosystems. Each species, whether big or small, plays a unique role in maintaining balance. From pollination by bees to pest control by birds, these organisms contribute to our food security and overall well-being. It's like a grand tapestry where every thread has its significance.

And my dear friends, ecosystems are not just about tangible benefits. They offer us a place for recreation, solace, and inspiration. Imagine a world without the soothing sound of birdsong or the vibrant colors of blooming flowers. Ecosystems contribute to our mental and emotional well-being, creating a harmonious symphony in the background of our lives.

In conclusion, my dear friendss, ecosystems are like the silent guardians, working tirelessly to provide us with the essential services we often take for granted. It is our duty to appreciate, conserve, and protect these delicate dance floors of life for the well-being of present and future generations. Now, go forth with this knowledge, and let it inspire you to be stewards of our precious ecosystems!

At present, the worlds oceans are. With overfishing, global warming, acidification, plastics, chemicals, and now microplastics.

Fishing nets several miles long (designed to clean out everything), are being used by huge fleets of Chinese ships, to poach fishing grounds, regardless of territorial waters or catch limits.

Other nets designed for use in the shallower waters on the continental shelves are weighted along the bottom to catch commercially valuable ocean bottom dwellers like:

Place

Plaice (Pleuronectes platessa), Photo by: Andrew Johnson

From: Ecomare

Turbot

Flounder

From: Outrigger Outdoors

Despite active efforts to prevent the rapid expansion of bottom-trawl fisheries, it is expected that more ocean habitat will shift from natural functioning to an altered state due to such large-scale disturbance.

Without sufficient adult fish, there are no small fish. This breaks the food chain, from bacteria, to Kingfishers, to Grizzly bears and humans.

Two billion humans rely on seafood as their primary food source.

Warming oceans absorb CO2, forming carbonic acid.

Warm water cannot contain as much oxygen as cold. Fish are sensitive to these changes. Many fish species breed at specific temperatures and pH range.

Salmon have moved further in the North Pacific to stay in cooler waters. They are running out of room to move further North, and are being ovefished.

A combination of overfishing, temperature changes, and very few of the different salmon species are returning up rivers to breed.

Salmon Species

From: Fly Guys .net

Cold currents bring nutrients up from the ocean depths.

Changes in these currents, such as El Nino, and La Nina create catatrostopic changes to fisheries, and drought or flooding on land.

Plastic bags floating in the seas are eaten by sea turtles, as they mistake them for the jellyfish they prey on.

Autopsies of adult sea turtles have shown their digestive systems to be plugged with plastic bags and debris, killing them.

Autopsies of oceanic birds found at their breeding colonies show they too are full of plastics, as are many beaches whales.

Estimates are that by 2030, there will be twice as many plastic products (by weight) as there will be fish in the ocean.

Plastic is not converted back to the oil it is made from, as it is not a biologically created material. Nothing in nature digests it.

Action of waves, sun, and sand break plastics into smaller particles till we get microplastics.

Many recent articles from Nature, Science, and other top Journals, as well as magazines such as National Geographic are sounding the alarm of microplastics.

The air humans (and all animals) breathe is filled with the fine dust from our plastic food containers, trash bags, water bottles, forks, knives, spoons, straws, carpet etc.

Everything plastic sheds off dust, and larger plastics break down into smaller and smaller parts. Humans and all animals are breathing this in.

Lungs filled with plastic do not work as designed. Plastics also leach dangerous chemicals.

Known EDCs that leach from plastics and threaten health include bisphenol A and related chemicals, flame retardants, phthalates, per- and polyfluoroalkyl substances (PFAS), dioxins, UV-stabilizers, and toxic metals such as lead and cadmium.

Endocrine-disrupting chemicals (EDCs) are substances in the environment (air, soil, or water supply), food sources, personal care products, and manufactured products that interfere with the normal function of your body's endocrine system.Jan 24, 2022

Lead, Phthalates, Cadmium: Children's Products

Bisphenol A (BPA), Phthalates, Phenol: Plastics and Food Storage Materials

Common EDCs: Used In

Phthalates, Parabens, UV Filters: Personal Care Products, Medical Tubing, Sunscre...

Wind, waves, beach sand, and sun all erode plastic into microplastics.

Fish hatchlings eat these particles thinking they are food. They starve, as most animals can not vomit. Once swallowed, these particles kill many species of fish, invertebrates, etc.

Food chains are like bicycle chains, break one link, and the chain collapses (all starve). We are at the top of many chains. Whales, sharks, tuna, swordfish, sailfish, and dolphins are others.

Pharmaceuticals, insecticides, herbicides, farming and lawn chemicals, spilled oil from ships and drilling rigs kill and neuter all forms of ocean (and terrestrial) life.

Without ice in polar regions, many currents will cease flowing. Currents bring up nutrients, and help distribute heat and cold and the world to moderate temperatures.

The Gulf stream keeps England from being as cold as Moscow. Most of Western Europe also.

We do not know what radical changes will occur when these enormous “rivers in the ocean" stop.

From: Earth How

The planet is very capable to rebuild herself, even heavy pollutant can be delt with, high radiation, absolutely nearly anything that is thrown at her, that is if humans stop what we’ re doing now, simply stop polluting. One of the first and biggest problem is simply the profit factor, we manufacture and produce way more than what we need and we’ re too many with never satisfied appetite. We’ re polluting the planet like there are no tomorrow, creating problems and replacing them with imaginary solution like the petrol cars replaced by electric when the solution is simply less cars! Have you watched the movie “dont look up”? It is exactly right on the money; we will not stop simply ignoring the facts so that we can keep going our little lives and not make the big sacrifices.

I find it laughable that there are people who use the term ecosystem without ever grasping the idea of equilibrium or of system?

Tell me, what is the ecosystem of the monsoon: it over-rains for three months and then for seven months, not a drop of rain. Is this a system? It is chaotic, it is diabolical, it is destructive and severely unbalanced. Had there been any system in the ecology to make it an ecosystem, the damned rains would fall evenly throughout the year, neither causing drought nor causing floods. It is absurd to suppose that there is a system in the so-called ecosystem.

Wildlife is an utter abomination. Why must the tiger kill the deer to stay alive: why does not this nasty thing learn to eat grass, or even better directly eat soil like the worms and get nutrition from the soil directly? How is it a system that one animal must kill another to stay alive?

And why cry? If wildlife is worth, why can it not save itself, say by flight or camouflage or fight back?

The environmental guys have a mental problem: they never understand what the human can do with intelligence. The dumb cow that did not know how to avoid being captured by man, and had nothing to stop man from killing and eating her instantly upon capture, was spared by the man, who fed and protected her, allowed her to breed a calf, and was persuaded to yield milk to the man. After living a life much longer than nature intended, the cow was finally slaughtered when she was no longer able to breed calves or yield milk. I do not think there is one environmentalist who is smart enough to get this point.

Is there an environmentalist smart enough to know that the so-called ecosystem in Bangladesh leaves room for zero cows, because the 7 feet of flood water ravaging for 3 months leaves not one cow alive. But the people of Bangladesh have kept 24 million cows alive, who live in man-made houses, ride man-made boats and trucks, and eat food brought to them by man. This is an infantile cry for wildlife from imbeciles who do nothing to save or feed any animal. Without human help, zero of the 24 million cows would be alive today. But it is futile to expect the ungrateful environmentalist to understand human kindness to animals they take as domestics and as pets.

There are two parts to this issue, one good and one bad.

First, the humans dramatically improved the so-called ecosystem, which is in fact not a system but a chaos. When nature was bent upon destroying the plants with unrelenting drought, the human came up with irrigation to establish a system and save the plants. When nature conspired to suffocate the grain-bearing plants with all kinds of weeds, the human came up with a system of weed removal to help the grain-bearing plants grow better. In human society, there are weed-like humans that commit crimes on productive people as parasites and plunderers, as rapists and killers. The better humans devised systems to put the criminals in prisons and in correctional institutions.

When nature goes on a killing spree through devastating floods, humans came up with a variety of flood control mechanisms, and dug canals, and built reservoirs to save the plants and the homes. People developed the art of cutting grass and drying them and saving them as hay, to feed the animals during lean times. When nature allows strong predators to kill and eat weak prey animals, human devised the civilized procedure of animal husbandry to save the animals, protect and feed them. The domesticated animals exploded in population size, and lived much longer and happier lives under human protection and care.

However, there are bad humans too. Because they are bad, they have dirty habits of not cleaning up after every act of production and consumption that generates waste. Bad humans pollute the air and water, and dump garbage on streets and drains, and carelessly cut down trees without replenishing them by fresh afforestation. Civilized humans do get them by their ears through environmental protection agencies and other law enforcement mechanisms.

Human parasites prey upon the insecurities of ordinary fearful people. These parasites lie about the extent of human damage to the environment, always hiding the key fact that the humans have made the earth far greener that it was through relentless improvement in technologies to grow food, breed animals and protect environments. The people of the world have made incalculable contributions to home gardening. But the parasites are preaching hateful messages against people with false allegations of excessive damage. They do it to get funds to carry on fraudulent research on environment.

Paul Ehrlich typifies the kind of parasitic humans who prey upon people’s fears. In 1968, Ehrlich predicted that by 1980, Indian people would starve to death. Of course Indian people did not starve to death in 1980, and actually added almost another billion people to their ranks since 1960. The Indians embarked on a green revolution to explode food production, to turn previously barren and arid areas of India into lush green fields of crop. The parasitic ambition of Ehrlich was to secure grants to carry on research on how to hate non-white people with a straight face, accusing them of overpopulation and environmental destruction.

On balance, people have taken better care of the environment that nature did. But there are always some dirty polluters and and civilized people need to take them to task. And among the dirty ones are the fake environmentalists like Ehrlich.

Well, if speaking hypothetically, change is inevitable. If humans were born to destroy the ecosystem, then why should humans die in the first place.

We destroy the ecosystem, and the planet just reacts or tries to defend itself. If we take this point, then there should be an explanation of how the earth recreated itself before the existence of human kind itself.

Earth has been recreating itself since millenniums even without the ‘help’ received from the humans.

If it were so, in the ages to come, humanity would cease to exist and it'll pave way to new species.

And no creature would want to have it's sole purpose to destroy it's own kind.

So, there's no way human’s ultimate purpose is to destroy the ecosystem.

Good afternoon whoever, around 120 years after mankind not just disappeared but simply is no longer a viable species on the planet, Earth, this most beautiful planet and the only planet that all carbon-based life on it can ever survive, will enter into the next-last and neverending ice-age that scientists have nicknamed as a Snowball Earth Event!!

Right now the level of carbon dioxide in the atmosphere is at around 415 PARTS PER MILLION! Without mankind helping the planet's plate tectonics to balance carbon sequestration with carbon replacement, carbon dioxide will once again start to fall by around 2 parts per million each and every year! Meaning that in 120 years times 2 equals a net lost of around 240 parts per million dropping carbon dioxide levels down to around 175 parts per million! This will cause the planet to reenter into massive amounts of ice to start the planet into the last ice age that should have started around 3,500 years ago! Mankind, completely unwittingly postpones Earth entry into this next ice age by changing from being hunter-gathers and becoming an agricultural based society!

This greatly speed up the mid-term carbon storage (basically tree life, and soil carbon) changing it into short-term and immediate use carbon dioxide back into the atmosphere! Then around 3,300 Years later we found out that using fossil fuels to drive our growth into the industrial Era, we started using it in quantities that suddenly did not just balance out the planet's carbon sequestration with replacement, but started adding extra too fast and Global warming took off, not simply because of mankind's actions, but because our planet had lost so much of in temperature-regulating abilities, that the arid and semi-arid areas of the planet was now creating extreme temperatures which in turn causes extreme weather!

Lifecycle of a Planet by Daniel James Kadavy explains how to repair the planet in as short as one or two generations! Dan

In order to reduce the negative impact of humanity on the Natural ecosystem in any scenario, we need to become similar to, adapted to the Natural system.

As long as we follow our inherently “unnatural”, instinctively self-serving, excessively overconsuming, ruthlessly competitive nature, surviving, succeeding at each other’s and Nature’s expense threatening, breaking the finely balanced general homeostasis of the system, we destroy the ecosystem like virus or cancer.

Human beings are the only “creatures” of the system that can consciously, willingly learn how to adapt to the system, achieve seamless integration and mutually complementing cooperation with the system above and against our inherent “software”.

It is this conscious adaptation against the original, contrasting state that will elevate us to the “truly Human” level of existence to the peak of Natural evolution.

Nature's not in the business of destroying humanity at all.

Humans are in the business of destroying nature, which sustains humanity, and in this respect, we're doing a first-rate job.

Just keep wolfing down those burgers for lunch and pumping out children who lead a life of consumption and privilege, and we'll all soon be gone.

• James Lovelock: 'Enjoy life while you can: in 20 years global warming will hit the fan'

We are already long past that limit. Modern farming practices are degrading the soil worldwide to the point where it is estimated that we have left than 60 harvests left in most places.

In other words, within the lifetime of our children we will not be able to grow enough food to even feed the people on Earth now. This is not a drill! This is an actual emergency. And the most terrible thing about it is that almost nobody is paying attention.

"Only 60 Years of Harvests Left": Environmental Breakdown, Insectageddon and the Ravages of Industrial Agriculture

Only 60 years of farming left, UN reports

What If the World's Soil Runs Out?

This quest indicates you think humans generally are destructive to the Earth! Now the solution to this problem is kill all humans and save the earth, Starting with You! So commit suicide and solve the problem! Simple solution to your problem! Fact : 71%+ of the earths surface is water, 28% + of the earths surface is dry land, 97% of humans live on 17% of the dry land, the other 3% of humans live on the ocean! The largest Forest on the planet is in Siberia, it is called “The Taiga” see below:>

Now, do you honestly believe that Humans can have any effect on the “ECOSYSTEM” on this planet?

I realize you have believed the SCAM ARTIST’S Religious organizations as “FACT” and I am educating you and you won’t believe these facts because, you are programmed to believe Scam Science! “Theories” that are not “FACTS!” …B.K.

Then another ecosystem automatically emerges.

In The Netherlands we had quite a large forest area (de Veluwe) in the middle ages, with a huge iron production, with countless steel ore melting ovens fed with charcoal, made from the trees. So all trees were chopped down.
Then it became an intensive agricultural area, which depleted the soil up to the point that agriculture became impossible.
Then we switched to cattle and removed the remaining top layer for use on the stable floors.

Finally only bare sand and heath fields where all that was left from the florishing forest: the result of total ecosystem destruction.

Now we have stopped our economy, stopped building houses, broke down our agriculture, and reduced the speed on the highways, only to prevent nitrogen emissions that would help this heath ecosystem to recover and to return to a rich forest ecosystem. Nitrogen is a fertiliser.

Only because we like these heathlands, even though they are the result of total ecosystem destruction.

Environments give a large number of biological administrations that are fundamental for the wellbeing and prosperity of both normal frameworks and human social orders. A portion of these administrations include:

1. **Air purification:** Environments, especially woods and wetlands, go about as regular channels, eliminating toxins and particulate matter from the air, consequently further developing air quality.

2. **Water purification:** Wetlands, woods, and different environments help to sanitize water by sifting through impurities, silt, and contaminations, in this way keeping up with spotless and safe drinking water sources.

3. **Climate regulation:** Environments assume an essential part in controlling the World's environment by engrossing carbon dioxide (CO2) from the air through photosynthesis and putting away carbon in biomass and soil. They additionally help to direct nearby environment conditions through evapotranspiration and the arrival of dampness into the climate.

4. **Flood control:** Wetlands, floodplains, and timberlands help to alleviate the effects of floods by engrossing and putting away overabundance water during weighty precipitation occasions, lessening the gamble of flooding downstream.

5. **Soil development and fertility:** Biological systems add to soil arrangement through the gathering of natural matter, the breakdown of plant material, and the action of soil life forms. Solid soils support plant development and agribusiness by giving fundamental supplements and water maintenance limit.

6. **Pollination:** Environments, especially those containing different plant species, support pollinators like honey bees, butterflies, and birds, which are fundamental for the propagation of many blooming plants and horticultural yields.

7. **Nutrient cycling:** Biological systems work with the cycling of supplements like nitrogen, phosphorus, and potassium between living creatures and the climate, guaranteeing the accessibility of fundamental supplements for plant development and environment working.

8. **Biodiversity conservation:** Biological systems give living space to a different exhibit of plant and creature species, adding to the upkeep of biodiversity and hereditary variety, which are fundamental for environment flexibility and variation to natural change.

9. **Recreation and social value:** Biological systems give open doors to amusement, the travel industry, and social exercises, improving human prosperity and personal satisfaction.

10. **Food and resources:** Biological systems give a great many environment labor and products, including food, lumber, medication, fuelwood, and different assets fundamental for human endurance and occupations.

These environmental administrations are interconnected and reliant, shaping complex biological systems that help life on The planet. Securing and monitoring environments is essential for keeping up with the wellbeing and strength of both regular frameworks and human social orders.

Reduce yes. To eliminate it would require a commitment I don’t think we could ever achieve. But let’s face it, we aren’t trying. If we care about our children, and we claim we do, we would work to provide them a future. Instead, we act like our current economy somehow takes priority over survival of our species and the world life in general. Selfish greed on the part of those who really have the ability to do something about it is going to stand in the way of the vast majority of us who, frankly like to live without sacrifice. We say we’d like to do something small to make a difference but the truth is that each of us could only reduce our own footprint. The truth is it would take a massive effort on the part of all of us to make much of a difference.

As George Carlin says, the planet will be fine. The people on the other hand….

Charos, the biggest human impacts on the environment all revolve around the use of fossil fuels, if there were no more fossil fuels being used, then the impacts on the natural environment would come to an end.
STOPPING CLIMATE CHANGE.

I think what needs to be done to stop climate change is just too big for governments to handle, & the majority of people in the cities do not want to have to change their environmentally damaging lifestyles. It is easier for the governments to wait until disasters happen, & then put their energies into dealing with those individual disasters. Having said that I must point out that the Australian government never did finish helping the people after the last catastrophic climate change wildfires.
I believe the only way to stop climate change is to change society to function on a more primitive technology, & to stop the burning of fossil fuels completely & immediately. This would be a tremendous task, but I think it is the only way to save humanity from societal collapse, total chaos leading to many deaths & eventually possibly the extinction of the human race within the next 80–100 years.
Keith.
Climate Change Evidence: How Do We Know?
Scientific Consensus: Earth's Climate is Warming
Climate change: evidence and causes | Royal Society

Temperature rises threaten ocean flow catastrophe in the Atlantic
One billion people will live in insufferable heat within 50 years – study
Cop26: world on track for disastrous heating of more than 2.4C, says key report

Is it too late to save Earth from climate catastrophe?
Temperature rises threaten ocean flow catastrophe in the Atlantic

Dire impact of climate emergency on children revealed
People under 40 will experience 'unprecedented life' of climate change disasters, study says

‘The only uncertainty is how long we’ll last’: a worst case scenario for the climate in 2050
https://www.trtworld.com/life/extinction-disease-heat-to-hit-earth-sooner-than-feared-un-draft-report-47758

Climate change widespread, rapid, and intensifying - IPCC
'Very grim world': Dr David Suzuki's prediction for the future

'Uninhabitable hell': Climate change and disease threaten millions
Welcome to the Anthropocene Age. Will it be the end of us?
More Frequent, Severe Climate-Fueled Disasters Exacerbate Humanitarian Crises
‘High likelihood of human civilisation coming to end’ by 2050, report finds
Human society has 90% chance of collapsing in the next few decades. But why?
Inquiry hears natural disasters likely to become more intense and frequent in future | Sky News Australia
Anthropogenic climate change accelerating faster than earlier, natural analogs - Advanced Science News
Climate change is only going to make health crises like coronavirus more frequent and worse
'My home is touched by the sea': Climate change displacing one person every two seconds, Oxfam says
'Uninhabitable Hell:' UN Report Warns of Planet's Future for Millions Without Climate Action
Are We Really Past the Point of No Return on Climate? Scientists Respond To Controversial New Study
2 °C of Warming Could Open The Floodgates For 230 Billion Tons of Carbon to Escape
Global warming is on pace for catastrophic 3.3º C without drastic measures
Whatever happens … it’s the end of the world as we know it Australia's Bushfires Burned an Area Twice the Size of Florida. Climate Change Means That's Just the Beginning, a New Report Warns
Global warming likely to increase disease risk for animals worldwide
A warning on climate and the risk of societal collapse | Letter
Global warming at 'boiling point', warns expert
As World Teeters on Brink, Over 250 Scientists and Scholars Warn of Full-Fledged 'Societal Collapse'
Climate change can disrupt food availability, reduce access to food, and affect food quality. For example, projected increases in temperatures, changes in precipitation patterns, changes in extreme weather events, and reductions in water availability may all result in reduced agricultural productivity.
Climate Impacts on Agriculture and Food Supply | US EPA
How Climate Change Will Alter Our Food
http://www.fao.org/elearning/course/FCC/EN/pdf/learnernotes0854.pdf
Climate Change Threatens the World’s Food Supply, United Nations Warns (Published 2019)
Climate explained: how climate change will affect food production and security
How climate change threatens food security (and why we're all at risk)

I note that you use the word "successfully managed to replace". I am afraid we, the humans, have not so far been able to replace any ecosystem services SUCCESSFULLY.

Let me explain. We can manually pollinate an orchard. But that would be an inefficient and costly process, compared to insect pollination. We can sequester carbon by liquifying them and injecting deep inside earth. Again an inefficient process. Same is true for flood control, oxygen production etc.

All ecosystems have evolved to generate multiple ecosystem services at very little cost. When we try to produce an "ecosystem service" artificially we end up incurring a lot of cost in terms of energy spent, materials consumed etc. Moreover, the process is hardly as efficient as in ecosystems.

Yes we have done all things that has lead to destruction of environment and the ecosystem. Every activity we do is in some or the other way harming the earth. From the food we eat, we have commercialized all the process, increase in pesticide use leading to biomagnification. Excessive breeding of animals for food consuming lot of resources to produce meat while poor in the world dont have food.

Encroachment of land to build whatever we desire a lot of it are unnecessary stuff. Thus cutting of rain forests, destruction of animal habitats, extinction of species.

Polluting the air, water and land thus making living conditions worse for other species.

In the few hundred years of our existance and the boost in industrial revolution we have destroyed the earth much more than cummulative sum of the existance of the earth. I think this question should not even exist. We have definitovely desytoyed earth (we are all a part of this mess) so much for our own selfish reasons that going back to sutainable levels we will have to put a great effort so that we pass a very beautiful earth to future generations.

P. S. Go look at your daily activity very minutely and trace back what are the consequences of those actions. As i am typing this feom my cell phone, creating this phone has also put a lot of damage to the ecosystem, from mining of rare minerals exploitation of humans in poor countries, destruction of forest and aerable land so that we in well to do off regions can have latest gadgets and talk about the destruction of the ecoystem. Isnt it an irony.