Neither pollution nor nuclear war has the potential to end all life on Earth, while climate change may.

The planet will be here until our star dies. How will our ecology die? Too many ways for man to destroy himself and the ecology to list here. One to add to the growing list: the plastic patches in our oceans, the plastics are being fed on and finds its way to the cellular structure, which we eat... If we die, we die. A failed experiment in evolution.

The planet will die when the sun consumes it in its red giant phase. Us on the other hand... my money is on a super bug spreading across the globe.

How about it will find the way to thrive forever?

Human society as we know it will end in a perfect storm of famine, pollution and pandemics. With a lot of wars thrown in.

Yes !!!

We might end ourselves, but not the planet. I think climate change caused by pollution probably wouldn't kill all of us, but it certainly would thin out the herd by a bunch. I think someone will nuke someone else, but l don't see a full scale war between the more powerful nations. IMO

Humans will eventually exit the scene but the Earth will do just fine until some cosmic event destroys it. But it's interesting to ponder what the Earth would be like if humans never arrived on the scene, or what the universe would be like if there was no sentient life to observe it.

Sol should turn into a red giant in about 5 billion years, that should pretty much do the job of ending Earth as a planet although it's mass will be absorbed into the red giant so it will carry on in a different form.

Either a meter strike or an intense emp form the sun will cause this planet to become a moon to Neptune.

The earth will end when the sun swells to almost one hundred times its diameter and destroys whats left of the earth. Humanity will be gone millions of years prior to this .

Neither. The human race may cull itself, but the planet will live on after we're gone. It's survived 5 known ice ages, so we are just a blip on the screen if we blow our opportunities. Lol

The world won't end. It's humanity that is in danger. Pollution will come into effect on a dangerous level in 100 years. I am more concerned with nuclear winter. The way the president is handling things...

You're kind of limiting me here, Greenheart. I've always thought the world would end by a collective implosion of the supernatural underwear worn by devout Mormons. I really fear this.