Kevin Parker, global head of asset management for Deutsche Bank, tells host Kai Ryssdal why he is currently steering investors away from American companies developing clean-energy systems and products.

In the Mexican state of Baja California, the government and international corporations want to build wind farms that could generate enough electricity to power homes in the United States while boosting the state's economy. Sam Eaton reports.

A California utility is aggressively developing power sources cleaner than coal — natural gas, nuclear, hydro, wind, solar … and now even cow manure. But Pacific Gas & Electric isn't turning green totally on its own. It's the law. Sarah Gardner reports.

China churns out solar panels, wind turbines, and more alternative energy than any other nation. It's also tops at spewing greenhouse gases, from all the coal it burns. But China sees a green lining there, too. Scott Tong reports.

Across Europe a mixture of subsidies, tax-breaks and regulation is creating a new class of green consumer and a whole lot of clean tech companies. Stephen Beard reports.

Even if we develop all the renewable energy we need, Earth will still warm more than it has in the history of mankind. Sam Eaton and Sarah Gardner look at how governments and businesses are planning to adapt to radical changes in our environment.

If global warming's worst effects are to be averted, new energy sources must be developed on a massive scale. But there will be winners and losers in that process. Sarah Gardner and Sam Eaton take us to two locales with stakes in America's energy future.

Earth's climate has come through many severe changes over thousands of years. But humans have never influenced them as much as today, nor had as much to lose. Sam Eaton and Sarah Gardner tell us about climate past, present and future.

Marketplace sustainability reporters Sam Eaton and Sarah Gardner discuss the radical changes Americans are seeing to their surroundings as temperatures rise from global warming.