Crazypat, this is the point I have been making for years. We are competing for territory, food and resources with every other species on earth, and we are winning! We are killing off them boogers like there is no tomorrow. There are fewer other great apes on earth, about 200,000, than the human population numbers grow in a single day. Soon there will be none. Soon there will be no forest because we will have cut it all down to grow biofuels.

Soon our victory will be complete. We will have killed off every other species on earth except the rats and vermin that co-exist with us humans. Soon we will have a brown cursted earth all to ourselves. Then we can celebrate.

I guess....

PARTY DOWN! WE WIN!

yep, not much to celebrate, is there?

I was brushing up on my evolution last night. It's fascinating how the in the last stages of human evolution, the successor species exterminated its still-living ancestor species.

Also, I love how we are the most successful predator of all time. WE CAN EAT ROCKS!!! Literally! And like all extremely successful species, we will be destroyed by our own success. It is the natural order of things: an organism always modifies its environment just by existing, and its excretions are autotoxic. We can dominate, but not control.

Industrial civilization is as doomed as yeast in a wine cask.

The burning question on my mind is this:
Do humans have the power to destroy ALL life on earth?
Will nuclear armageddon do it? Persistent bio-accumulating organic toxins? Radical climate changes? I am still undecided, but I'm studying up on molecular biology. I'm sure we'll manage to cause another mass extinction--but I don't think we can actually destroy all life. Prokaryotes are some damn hardy organisms.

"Do humans have the power to destroy ALL life on earth?"

Yes, but probably with great difficulty as well as great(seemingly innate) stupidity.

Life is pretty resilient and could always re-evolve, though wasting a few million or hundreds of millions of years may be sad. I did a first pass of collapse levels a few years back:
http://theslide.blogspot.com/2006/01/levels-of-collapse-warning-may-be.html

Being humans we are more interested in our own and our economic systems survival, I have bad news: lots die and the economic systems break.

"Do humans have the power to destroy ALL life on earth?"

Naahhh...the cockroaches will always survive.  Heck, you can microwave those critters and they just laugh at you.

"Do humans have the power to destroy ALL life on earth?"

Not a chance.  There are creatures that require temperatures close to the boiling point of water in order to survive. They prefer temperatures above boiling. Some of the latest thinking is that they are very closely related to the first life forms on earth.

http://en.wikipedia.org/wiki/Hyperthermophiles

from the wikipedia article
The most hardy hyperthermophiles thus known live on the superheated walls of deep-sea hydrothermal vents, requiring temperatures of at least 90 °C for survival.

Many hyperthermophiles are also able to withstand other environmental extremes such as high acidity or radiation levels.

Note also that they do not even depend on current energy from the sun as almost all lifeforms do. As long as those deepsea vents remain hot, they have what they need.
No way. We like to think of ourselves as the peak of evolution, the most successful species and so on, but the fact is that every single individual alive today lives because all their ancestors survived long enough to be successful in the game. We are equally much winners - so far. Sure, we can look ahead and say the great apes will probably be dead soon, but that's our opinion. Evolution isn't about prescience. It's about what is, not what will come. Whether we will suddenly nuke ourselves has not been decided yet, and nature has, with its characteristic lack of forward planning, not taken that possibility into account one way or the other.

But the real lords of the planets are the microbes. If they could think through some form of emergent behaviour or something, they would probably regard us as mere brownian motion in the tea cup of evolution.

Apropos microbes: here's a link to an appropriately doomerish la times article called "The Rise of Slime".