Can ‘Green’ Ammonia Be a Climate Fix?
Researchers believe that if the chemical is made with renewable energy, it could be used as a clean source for fertilizer, fuel, and heat.
Bright Spots in the Global Coral Reef Catastrophe
The first major report on the world’s reefs presents a grim picture of losses from global warming. But there are signs corals can recover if given a reprieve.
‘Blue Carbon’ Credits Could Help Restore Ecosystems
Seagrasses, mangrove forests, and wetlands store tons of carbon. But can a market based on regrowing them avoid the pitfalls that plague land-based programs?