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Hundreds of French schools remain closed as student protests turn violent

Some 400 French schools have been closed and will remain shuttered on Friday as the student protests that began in high schools in the Paris region last week have spread across France and grown increasingly violent. The students are protesting grievances including teacher shortages and dilapidated school buildings. The government has blamed the hard left for initiating the movement.

Weather

Think more rain means more river water? Not necessarily

Some rivers are receiving more rain than before but have lower water flow, according to a study More rain and snow equals more water in rivers, right? Not necessarily. A new study shows that, despite receiving more rainfall than they used to, river water levels are falling because of changes in climate. Global heating is intensifying the hydrological cycle, making wet regions wetter and dry regions drier, but how is this affecting river flow? Researchers from the Pennsylvania State University, in the US, have analysed precipitation and river flow records in more than 10,000 rivers between 1951

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Science

These tropical trees breathe at night to survive drought

Some tropical trees have evolved a clever way to survive drought by taking in carbon dioxide at night, allowing them to keep their pores closed during the hot daytime and conserve water. By comparing three Clusia species, researchers discovered that this water-saving form of photosynthesis, known as CAM, did not arise through a single evolutionary change. Instead, ancient genome duplications followed by millions of years of genetic reshuffling produced strikingly different strategies, from strong CAM to stress-triggered and hybrid forms.

Topic: Some | RocksNews