FAQ about Global Warming and Climate Change

The Intergovernmental Panel on Climate Change’s (IPCC) Fourth Assessment Report (2007) serves as the key reference for this FAQ published by the EPA.
The IPCC brings together the world’s top scientists, economists and other experts, synthesizes peer-reviewed scientific literature on climate change studies, and produces authoritative assessments of the current state of knowledge of climate change.

FAQ: Global Warming & Climate Change

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# Article Title
1 What is the greenhouse effect?
2 What are the most important greenhouse gases? Where are they coming from and how have they changed?
3 How are the terms climate change, global warming, and global change different?
4 Is our planet warming?
5 Are human activities responsible for the warming?
6 How do scientists project future climate change?
7 How much will the Earth warm if emissions of greenhouse gases continue to rise?
8 How will a warming climate affect precipitation?
9 Will a warming climate make temperatures more extreme?
10 How will a warming climate affect hurricanes?
11 How will a warming climate and climate change affect the polar ice sheets, sea levels, and sea ice?
12 How serious is a warming of a few degrees?
13 Will a warming climate have more positive or negative effects?
14 How might global warming and climate change affect my health and well-being?