Global Warming: Well Past Tipping Point?

Are we too late? Will future species or alien life discover our footprints like we do with this Dino footprint that could be T.Rex? A digg pointed to this article that said we're already past the Global warming tipping point:

The final synthesis report from the United Nations Intergovernmental Panel on Climate change will show that growing economies herald growing greenhouse gas emissions and the result has been a growing threat of global warming, says scientist and Australian of the Year conservationist Tim Flannery.

''We thought we'd be at that threshold within about a decade,'' Flannery told ABC. ''We thought we had that much time, but the new data indicates that in about mid-2005, we crossed that threshold.''

Of course, human history now suggest that Climate Changed helped our species migrate out of Africa.

It is hard to imagine a world where their isn't any rustling of leaves, or green grass to run and bike around with. Climate Change, this warming of the Earth, doesn't mean the Earth will be gone. It means, there will be fewer and fewer ponds and streams, and green grass to play around with, or something else to replace them. There will be fewer and fewer trees whose leaves will rustle as the wind blows. If the sea should rise, and the weather become crazy, a lot of people could die and there may be fewer people on the Earth. But you know the sadder part of it? The Earth will still be around, the sun will still rise. There will still be wind blowing and there may even be trees and streams and rivers and maybe plants and animals, but no one would be able to appreciate the leaves swaying to the beat of the wind because, no human would be around to admire this beauty.

*image is from wikipedia via NASA Apollo Archive (http://www.hq.nasa.gov/office/pao/History/alsj/a410/AS8-13-2329HR.jpg)