Getting to Zero Carbon

Air travel is set to grow dramatically. It will be a while before electric planes truly take off, but people are trying to reduce their carbon footprint now with offsets and "flight shaming."

The shipping industry is starting to move away from pollutant-intensive heavy fuel oil. Scientists and private companies are betting on a clean replacement technology: hydrogen fuel cells.

Maersk, the world's largest container shipping company, has set a massive goal for itself: going carbon neutral by 2050. This would be good for the world. But how would it be good for the bottom line?

More cities, states, and even utilities are pledging to shift to all renewable energy. But experts say the nation's power grid needs a lot of changes to make that happen.

NPR's Mary Louise Kelly talks with Jennifer Layke, global director of the energy program at World Resources Institute, about Google's aspirations to power all its operations with carbon-free energy.

In the south of Georgia, land and sunshine are plentiful, making it prime territory for solar developers. The dramatic drop in the cost of solar is bringing new opportunities to longtime landowners.

Solar is booming in Georgia, and it's not because of state mandates supporting renewable energy or concerns about climate change. Instead, powerful market forces are driving the growth.

Cities, states, businesses and electric utilities are setting ambitious goals to cut greenhouse gas emissions. But it's not clear exactly how they'll do that or whether it will actually work.