That means dealing with electricity, and the other 75% too. To prevent the worst effects of climate change, we need to get to zero net greenhouse gas emissions in every sector of the economy within 50 years-and as the IPCC recently found, we need to be on a path to doing it in the next 10 years. So even if we could generate all the electricity we need without emitting a single molecule of greenhouse gases (which we’re a long way from doing), we would cut total emissions by just a quarter. Making electricity is responsible for only 25% of all greenhouse gas emissions each year. I wish that were enough to solve the problem. Everyone who cares about climate change should hope we continue to de-carbonize the way we generate electricity. That’s good news, at least in places that get a lot of sunlight or wind. Renewables are getting cheaper and many countries are committing to rely more on them and less on fossil fuels for their electricity needs. In my experience, that’s what people point to when they think about reducing greenhouse gas emissions. What came to mind first? I bet you thought of solar panels and wind turbines.
Quick: Think of some inventions that help fight climate change.
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