Fern that may have saved the planet finds new fame and maybe fortune
Fifty million years ago, the Arctic Ocean was a very different place: a hot, enclosed lake. It became the perfect habitat for a small-leaved fern called Azolla, which for 1 million years sucked up half the world's carbon dioxide. And although what is known about Azolla's true inner workings only skims the surface, people all over the world have continued to find ways to explore its possibilities.
China lures companies into carbon footprint labeling
First, it was energy efficiency labeling. Then it was carbon emissions trading. Now, China is finding another way to limit climate impacts of its domestic production. A group of Chinese companies recently earned a certification from their government for producing goods with a significantly smaller carbon footprint than the market average, marking the start of a carbon labeling system in the country that is the world's largest greenhouse gas polluter.