Before you start attacking me, just hear me out.
Due to human activity, we are accelerating climate change, I believe this to be true. Global warming has occurred in Earth’s history, the difference is that we, humans, are accelerating it. But I began looking at it differently since I started studying for an BSc in Environmental Science.
We aren’t killing the planet; we are killing life on the planet. Two very different things but just as serious.
The earth is 4.6 billion years old and has survived five mass extinctions:
- Ordovician–Silurian extinction – 439 million years ago
- Late Devonian extinction – 364 million years ago
- Permian–Triassic extinction – 251 million years ago
- Triassic–Jurassic extinction – 199 million to 214 million years ago
- Cretaceous–Paleogene extinction – 65 million years ago (Asteroid)
From my studies, the third mass extinction, Permian–Triassic extinction, which was the deadliest, wiped out about 75% of life on land and 95% of life in the ocean. 95%, that’s huge! Especially since life actually began in the oceans and made its way onto land. Despite this devastation, some form of life was still able to continue and evolved. The fifth mass extinction that wiped out the dinosaurs wasn’t as devastating as the third one and that was due to an asteroid colliding with earth.
Whenever the planet has experienced an extinction, Earth has always been able to regenerate itself and there is no reason to believe it can’t do that again. However, I do wonder whether humans will be part of the future. Although we are an arrogant species wielding the superiority sword, we are also incredibly fragile. A little fact I learned during my studies; 95% of ALL life that has EVER lived on earth is extinct.
It is believed by some that we are in the sixth extinction event, Holocene extinction. As our CO2 parts per million is at the highest level than at any recorded time in the past, something has to give. We are on a path of destruction and the crazy thing is that not everyone is on board with this.
We humans really do need to change our habits instead of playing lip service. I don’t believe we, humans, can stop the sixth extinction. However, we do have the capability to slow if we all worked together. The painful truth is that the officials we elect have so much power and are able to make colossal changes but they just aren’t doing enough. In June 2019, the UK became the first major economy to in the world to pass a law requiring all greenhouse gas emissions to net zero by 2050 and we’re not even the richest economy in the world!
I believe in science, and no one knows how this is going to play out. Scientists are providing us with their best predictions based on various models but these are being readjusted because certain factors are accelerating the problem. There will always be variable factors; number of people living on the planet, the next pandemic and the resulting loss of life.
I’m still at the early stages in my educational journey, maybe my views may change along the way. That’s what I want out of my education; learning, listening to different opinions and forming my own conclusions based on the facts in front of me.
Geologists can tell a lot about history from rock layers built up over millions and millions of years. In the very distant future when more intelligent species start investigating the planet’s past, they will find our legacy in the rocks, a thin layer of plastic pinpointing the age of humans.