By Erik Stokstad , Science.  Excerpt: Insects living in the lowland tropics have evolved to deal with brutal heat. But many of them are close to their limit, according to a massive study that assessed the heat tolerance of hundreds of species. The findings, published today in  Nature , provide  an unprecedented view of what temperatures tropical insects can deal with —and reinforce concerns about the risk that climate change poses for insect biodiversity....  Full article at https://www.science.org/content/article/many-heat-stressed-tropical-insects-are-reaching-their-limits . 

By Grace van Deelen , Eos/AGU.  Excerpt: A new study of  Antarctica  has found that since 1996, its ice sheet has lost 12,820 square kilometers (nearly 5,000 square miles) of ice—nearly enough to cover the state of Connecticut, or 10 cities the size of Greater Los Angeles. The study, published today in  Proceedings of the National Academy of Sciences ,  evaluated the retreat of the ice sheet’s grounding line over the past 30 years. A grounding line is the point at which continental ice (grounded on bedrock) meets a floating ice shelf, and as such serves as a good measure of the advance and retreat of ocean-terminating glaciers....  Full article at https://eos.org/research-and-developments/antarctic-ice-sheet-has-lost-a-connecticut-sized-amount-of-ice-over-the-past-30-years .