Coral reefs are among the most diverse ecosystems in the world, protecting coastlines from erosion and supporting more than 500 million people through tourism and fishing livelihoods. But at the current rate of global warming, mass coral bleaching is expected to become more frequent and severe worldwide.

Hurricanes, pollution, disease, bleaching and the effects of an increasingly warmer planet are all negatively impacting the health of coral reefs around the world. However, those in the Caribbean are facing a new threat - an aggressive, golden-brown, crust-like alga that is rapidly overgrowing shallow reefs.

Scientists from Heidelberg University investigate which factors determine the stability of ice masses in East Antarctica

Disadvantaged residents from predominately Black neighborhoods have fewer options in face of gentrification. A new study by a Stanford sociologist has determined that the negative effects of gentrification are felt disproportionately by minority communities, whose residents have fewer options of neighborhoods they can move to compared to their white counterparts.

The experimental Photoacoustic Airborne Sonar System setup in the lab (left). A Stanford "S" submerged beneath the water (middle) is reconstructed in 3D using reflected ultrasound waves (right).

Researchers at ETH Zurich have identified a self-regulating mechanism in European deciduous trees that limits their growing-season length: Trees that photosynthesise more in spring and summer lose their leaves earlier in autumn.