A critical step to reduce climate change
Hello Bill Gates (who will never read this).  You are a solutions guy, and a technology guy.  Unsurprisingly, your blog lists lots of good technologies and solutions.<p>But climate change has shifted from a technological problem to a policy problem.  We can solve climate change with a cocktail of existing tech, but we need public policy to make it happen.  The biggest thing <i>you</i> (Mr Gates) can do is get directly involved in policy-making.  US politics only empowers the ultra-rich, and you are sitting on the sidelines.<p>Get your face on TV, in front of Congress, and in the Oval Office.  The rest of us can't, so you have to.<p>[edit for clarity]