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Section 4.4 Big Problem: What is the best way to reduce greenhouse gas emissions?

What are the best strategies for reducing greenhouse gas emissions?
Most people agree that we need to reduce greenhouse gas emissions, so that we can limit the dangerous effects of global warming. There are, however, many different strategies for doing this. Should we focus our efforts on switching to electric cars? Or to convincing everyone to switch to a vegan diet? How can we evaluate and find the best strategies for reducing emissions - before it's too late?