I just watched a Horizon Documentary on global dimming (from 2005)... was really scary stuff. New independant research had come to light (from a few different sources) that showed things could be a lot worse than we thought, if we continue along our current path.
An excerpt from the BBC program summary:
Even the most pessimistic forecasts of global warming may now have to be drastically revised upwards. That means a temperature rise of 10C by 2100 could be on the cards, giving the UK a climate like that of North Africa, and rendering many parts of the world uninhabitable. That is unless we act urgently to curb our emissions of greenhouse gases.
From a comment on an entry at perfect.co.uk:
Anyone who saw Horizon's program on Global Dimming must now realise that we on Planet Earth now have about 25 years to take action. Global warming is in a very serious advanced stage. Science has now shown that the Global Dimming effect is a temporary mask, slowing down the warming. Temporary is the vital word because as the climate change effects of Global Dimming take effect, and the Monsoon rains fail, the sudden increase in forest fires pushes the CO2 levels to a point of no return.
Anyone even remotely intested in climate change or the future of humanity should see this documentary. It's a massive eye-opener!
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