Do your bit for the planet - burn more fossil fuel

I get really confused about all this global warming stuff. Everyone says we should do our bit to save the planet. But it isn't about that, is it? It's about saving the human race. The planet was here 3.5 billion years before humans were even thought of (or 6 days if you are a christian). Chances are, its going to be here for at least as long after we are gone.
The thing is, we humans only occupy a pin-prick of time in this planet's history. All this global warming stuff might be worrying for us, but to be honest, the Earth probably doesn't give a damn about it. As recently as 600 million years ago a catastrophic split occurred in what is now Siberia but was then part of a supercontinent down at the south of the globe. Along hundreds of miles a torrent of super-heated lava spat into the air...... changed the whole earth's atmosphere in days... killed off 90% of all life on earth. This makes our little CO2 issue look quiet a parochial problem.
It also seems that we are in a bit of a cool period at the moment. Over time (like 3.5 billion years), the earth is on average 10-15 degrees warmer than today. So maybe we should be warming it up a bit. The downside is that we all die off, but if we really want to save the planet maybe we should burn more fossil fuel to get it back to normal.