Fireflies looking for a mate flash through the summer evening in many parts of the world. But the light has nothing to do with romance. It's a biochemical reaction that causes a signal in the fireflies' glow cells.
Chemistry postgrad Dayne Swearer talks about how he and his team are using light in their search for carbon-free fuels, a year after meeting DW at the Lindau Nobel Laureate Meetings. They could be onto something big.
The protest over a scrap of ancient forest in Germany is about much more than a few scraggly tree huggers. It's about the future of energy — and protection of the climate around the world, says DW's Sonya Diehn.
A study has found that 60 percent of international public finance in African energy goes to fossil fuels, compared to just 18 percent to cleaner alternatives. Are wealthy countries offshoring emissions?
Whoever takes a swim along Puerto Rico's shores at night will witness a special show. The water starts to glow in a bright blue and green. The effect is called bioluminescence - it's our natural phenomenon of the week.
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