We&#x27;ve had almost 5 decades to make renewable energy cheaper than coal.  We&#x27;ve been trying since the energy crisis of the 1970s.<p>Nuclear, solar, wind, etc. It seems unfair that a billion people remain uneducated and in poverty because a small percentage of the world&#x27;s population refused to make the necessary changes.  Before there was Al Gore, there was Carl Sagan:<p><a href="http:&#x2F;&#x2F;youtu.be&#x2F;G_3pZXhKVWY" rel="nofollow">http:&#x2F;&#x2F;youtu.be&#x2F;G_3pZXhKVWY</a>