EnvironmentRecord-setting heatwave bakes US South and Mexico A record-setting heatwave in Texas and Mexico is affecting tens of millions of people and straining power grids, and it is likely to continue for the next week News
ChemistryGraphene with ripples could help make better hydrogen fuel cells The one-atom-thick layer of carbon known as graphene can split hydrogen 100 times more efficiently than an equivalent mass of the best catalysts because of its strange nanoripples News