PBS News Weekend

The amount of wind energy in the U.S. has increased dramatically, nearly tripling in the last decade alone. It's gotten a big boost from a federal subsidy called the Production Tax Credit, which provides an incentive to wind developers for each kilowatt of energy produced. But after nearly 30 years, the Production Tax Credit is set to begin phasing out, which is expected to result in a drop-off in wind installations over the next several years. Special correspondent Karla Murthy traveled to Texas to report on how the industry is approaching the end of the incentives as part of our ongoing series "Peril and Promise: The Challenge of Climate Change.