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Nations have promised to end deforestation, curb methane emissions and stop public investment in coal power. Researchers warn that the real work of COP26 is yet to come.
India’s 2070 goal could help limit global warming to 1.5 °C, say researchers — but it will require the nation to juggle steep emissions cuts with lifting a significant proportion of its population out of poverty.
Masks offer the greatest protection indoors and during long exposures to people infected with the coronavirus — but other public-health measures matter, too.
An international team of researchers wants to find people who are genetically resistant to SARS-CoV-2, in the hope of developing new drugs and treatments.
The genomes of 13 remarkably preserved 4,000-year-old mummies from the Tarim Basin suggest they weren’t migrants who brought technology from the west, as previously supposed.