Suzanne B. Bopp's Climate Chronicles

Feeding 9 Billion People

Feeding 9 Billion People

Between the world's increasing population and its growing food consumption as poverty declines, experts predict we will need 70-100% more food by 2050.

How we might be able to produce that food is the subject of a report published in the journal Science called “Food Security: The Challenge of Feeding 9 Billion People.”

The paper, written by Britain's chief scientific adviser, John Beddington, and nine other experts, does not offer specific recommendations, though the authors are working on those. They note that climate change and its impact on agriculture, soil and water resources will further complicate the task of feeding a world population estimated to hit 9 billion by 2050.

California Launches Statewide Emissions Monitoring Program

California Launches Statewide Emissions Monitoring Program

California is launching a first-of-its-kind statewide network of monitors to track greenhouse gas emissions closer to their sources.

Knowing those levels will be a crucial step toward implementing a state law, known as AB 32, that requires California to cut its emissions 25% by 2020.

Water Vapor Slowed Global Warming Over Past Decade

Water Vapor Slowed Global Warming Over Past Decade

Over the last 10 years, global temperatures rose about 25 percent more slowly than scientists had previously predicted. A study published in the journal Science reports that that's because the climate models factored in increases in carbon dioxide and other greenhouse gases but didn’t count on a decrease in water vapor — the most abundant greenhouse gas — in the middle part of the atmosphere.

Researchers say the results are nevertheless consistent with what’s been known for years about climate change: that the planet has gotten warmer and most of that warming is anthropogenic.