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Showing posts from April, 2016

What can the President of the United States do about Global Warming?

Let's assume you're the President of the United States, and you ask your head science advisor what we could do about global warming. Here's what the conversation might be like:
Pres: My dear science advisor, what should we do about global warming?
Advisor: First, you should know, sir, that, contrary to popular belief, predicting how much the Earth will warm in say 100 years is very difficult.
Pres: But isn't it true that human's emissions of greenhouse gasses is causing the Earth to warm?
Advisor:  It certainly seems to be. There are many agencies who are collecting temperature data from all over the world. Fortunately, the data for the last 50 years or so seems to be pretty well agreed upon.
Pres: And what does the data say?
Advisor: Here's a graph from the United Nation's IPCC report:
Sir, it's hard to tell what's going on with global temperatures unless you look carefully at this graph. Let's look at the top part of the graph for the last …