For complete beginners:
Those with some knowledge:
The IPCC AR4 Frequently Asked Questions (pdf) is an excellent start. That covers:
- What Factors Determine Earth's Climate?
- What is the Relationship between Climate Change and Weather?
- What is the Greenhouse Effect?
- How do Human Activities Contribute to Climate Change and How do They Compare with Natural Influences?
- How are Temperatures on Earth Changing?
- How is Precipitation Changing?
- Has there been a Change in Extreme Events like Heat Waves, Droughts, Floods and Hurricanes?
- Is the Amount of Snow and Ice on the Earth Decreasing?
- Is Sea Level Rising?
- What Caused the Ice Ages and Other Important Climate Changes Before the Industrial Era?
- Is the Current Climate Change Unusual Compared to Earlier Changes in Earth's History?
- Are the Increases in Atmospheric Carbon Dioxide and Other Greenhouse Gases During the Industrial Era Caused by Human Activities?
- How Reliable Are the Models Used to Make Projections of Future Climate Change?
- Can Individual Extreme Events be Explained by Greenhouse Warming?
- Can the Warming of the 20th Century be Explained by Natural Variability?
- Are Extreme Events, Like Heat Waves, Droughts or Floods, Expected to Change as the Earth's Climate Changes?
- How Likely are Major or Abrupt Climate Changes, such as Loss of Ice Sheets or Changes in Global Ocean Circulation?
- If Emissions of Greenhouse Gases are Reduced, How Quickly do Their Concentrations in the Atmosphere Decrease?
- Do Projected Changes in Climate Vary from Region to Region?
We'll link to the individual pages once the report is available in html.
RealClimate: Start with our index
Informed, but in need of more detail:
History: Spencer Weart's "Discovery of Global Warming" (AIP)
Informed, but seeking serious discussion of common contrarian talking points:
All of the below links have indexed debunks of most of the common points of confusion:
Coby Beck's How to talk to Global Warming Skeptic
New Scientist: Climate Change: A guide for the perplexed
RealClimate: Response to common contrarian arguments
NERC (UK): Climate change debate summary
UK Met Office: Climate Change Myths
Por último recomiendo que echéis un vistazo a los comentarios que han ido generándose en esa entrada. La gente está aportando más enlaces que merecen la pena (RSS de los comentarios).
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