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Climate Change Facts

What is the Greenhouse Effect?

Seen from space, our atmosphere is but a tiny layer of gas around a huge bulky planet. But it is this gaseous outer ring and its greenhouse effect that makes life on Earth possible. It could also destroy life as we know it. Learn more about radiative forcing, global warming potential, and why all of this is so important for us.

Expert Interview

The World Without Us

How long would it take the climate to recover if we all disappeared? We asked Alan Weisman, bestselling author of The World Without Us.

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What Will The Climate Be Like in 2100?

Stanford University climatologist Stephen Schneider discusses what we know and don’t know about the future of the Earth’s climate, and whether it is worth spending trillions of dollars to fight climate change.

Carbon Dioxide - Endless Warming

Carbon dioxide is the number-one reason for man-made climate change. But what is carbon dioxide, actually? Where does it come from? And why are governments and businesses now scrambling to reduce their carbon dioxide emissions?

Essentials from the UN Global Warming Report

The latest Intergovernmental Panel on Climate Change report delivered a huge blow to global warming skeptics. See various scenarios that show where global warming could take us by the end of the century.

Greenhouse Gases

Ten of the most important sources of man-made greenhouse gas emissions

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What We Do

Carbon Cuts

Allianz plans to reduce its greenhouse gas emissions by 20% by 2012. Astrid Zwick, head of Environmental Management, explains how.