The year saw plenty of ups and downs for tech that doesn’t use any polluting fuel, but there are glimmers of hope, especially in the developing world, where technology may leapfrog our dirty tech and step right into a cleaner future.
After a summer hearing about the death of Solyndra, you couldn't be blamed for not knowing that the solar industry is exploding in this country. And it's not just selling panels, an entire industry is springing up around people getting energy from the sun.
The end of the solar company—with $1 billion in investments and hundreds of millions in government loans—is bad for the U.S. economy. But the good news is, it failed because solar power is growing too fast.