Sun Dec 27, 2009 9:56 pm
This is what my strange daughter has to say on the subject:
"Last month in school we had a Climate Change representitive for Wales come in and talk to us about global warming. Just about all the information I'm about to use comes from her and so if it's wrong you can yell at her, not at me.
Over the last 300,000,000 (Three hundred million) years, since the Carboniferous Period, the Earth has experienced warm periods (such as the Permian and the Mezozoic) and Ice Ages (such as the Little Ice Age of 1730). On average, before the year 1900, the global temperature has been increasinging about 0.2 degrees Celcius per 100 years. But since 1900, the climate has warmed by 0.7 degrees Celcius. So yous who think climate change is a natural cycle are off yer heads because the climate hasn't warmed as quickly as it's doing now for 300,000,000 years, and you're telling me it's coincidence that the climate has started warming almost four times its natural rate ever since the Industrial Revolution? Don't think so, mate. CO2 levels have also increased by an alarming amount since the 1900s, by about the same rate (4x higher than the natural rate).
Since the 1960s, the air temperature of the Arctic has risen by 2 degrees Celcius, 30% of the Ice Sheet has been lost and there is an increasing number of polar bears starving to death because of the fast-retreating ice which means that they can't hunt seal pups. :shock: Coincidence? Not likely.
Nothing like this has happened since 300,000,000 BC, and it's entirely our fault. Guilty? So you should be.
It's relatively difficult to predict the concequences, but this kind of thing happened before (but on a much smaller scale) about 250 million years ago and again about 25 million years ago. The first time round it was devastating. it was caused by a change in the tilt of the Earth, and caused the biggest mass extinction the world has ever known. 95% of life in the oceans and 75% of life on land was wiped out all within the course of a few thousand years. Almost all life was reduced to dust and only a few species survived. It took about 150 million years for life to recover.
The second time was less devestating. this was caused by the melting of polar ice caps due to a change in the Earths tilt. Fish stocks were wiped out. The world's largest aquatic mammalian predator (Basilosaurus) was wiped out, as was the largest predatory land mammal (Andrewsarchus), along with many other giant mammals including Dorudon and Brontotherium (a giant dolphin and a giant rhino).
Only this time it's worse. The fish stocks needn't wait for climate change to kill them off, they're already being ruined. The largest aquatic mammals needn't wait either, they're being wiped out for Japanese "research", even our own species is suffering from the consequences of our actions, hurricanes, droughts, floods and tsunamis regularly claim thousands of lives, and it's only going to get worse. So thanks, world. Thanks a lot. You've ruined my future, my children's future, everyone's future. There's nothing can be done about it, we've passed the "tipping point" as the media like to call it: we've tipped. I don't believe the human race has any right to survive at all. After all that we've done, we deserve extinction."