Global warming: Simple answers to complex questions

Global Warming is Confusing. Dr. Bill Answers Your Questions.

Question: I get it that global warming is happening, but doesn't that mean it's too late to do anything about it? Is there any hope?

Answer: Some global warming is inevitable, but what we are most concerned about is the climate system passing a tipping point where melting ice leads to irreversible sea level rise. We may be as few as thirty years away from passing that threshold. However, the good news is that such a situation is preventable.

It is critical that we begin working together NOW to reduce global warming pollution.

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Dr. Bill Chameides is chief scientist at Environmental Defense. He has authored or co-authored more than 130 scientific publications and 5 books. His research focuses on global biogeochemical cycles, global change, and urban and regional-scale air pollution.