TROPICAL ECOSYSTEMS

Freshwater rivers are quietly running low on oxygen, and scientists say it’s happening faster than expected. A global study tracking 21, 000 river sections over nearly 40 years found that about 80% of them lost oxygen, with tropical rivers struggling the most. While warming climates usually hit cold

Drought can seriously mess with how plants get their phosphorus, a key nutrient. Recent studies might not have fully understood how different drought conditions alter the availability of phosphorus in soil. Scientists decided to test this by growing maize under varying levels of soil wetness in a tr