The Science Museum has a worthwhile online exhibition, Climate Change: the Burning Issue. It’s in bite-sized chunks rather than extended analysis, but none the worse for that. One quote will suffice
The world’s biggest polluter is the United States. It produces 20.4 tons of carbon dioxide per person, per year. In the UK we release 9.5 tons per person, per year, while in China, carbon dioxide emissions are only 1.9 tons per person, per year.
If you want technical stuff, they have it in spades at the International Energy Agency Greenhouse R&D Programme. There’s some good stuff on sources and ’sinks’ of various greenhouse gases, including carbon dioxide and methane.
It is perhaps surprising that the US Environmental Protection Agency has a site devoted to Global Warming and it is by no means dismissive of the evidence for the effect of human activity on the world’s climate. Maybe some US politicians should read it!
Maybe more speculative is the Global Warming: Early Warning Signs site, with separate maps for each continent showing “fingerprints” of global warming. Here are a couple of these fingerprints for Europe:
“A study of the timing of leaf unfolding for four tree species shows that from 1969 to 1998 the beginning of the growing season has advanced by 8 days. The earlier leaf unfolding corresponds with increasing early spring temperatures over the last 30 years. The greatest warming occurred in Portugal, where average air temperatures in early spring (February to March) increased by nearly 1.1ºF (0.6ºC) per decade, and the beginning of the growing season has advanced by about 14 days since 1969.”
“Central England — Cold days declining, hot days increasing, 1772 to present. 1995 brought 26 days above 68ºF (20ºC) versus an average of 4 days per year since 1772. “
Still not convinced? Then have a look at the website of those trendy green eco-hippies at BP
“We believe that precautionary action is justified: we have set a target to stabilize our greenhouse gas emissions … In November 2003, BP Group Chief Executive, John Browne, set out our latest thinking. Our new target, he explained, reflects a growing scientific consensus: ‘that to avoid serious impact upon societies or the environment, society should plan to stabilise atmospheric concentrations of carbon dioxide (CO2) at around 500-550 parts per million (ppm).’ “