The UK has a legally binding goal of a 78 per cent cut in carbon dioxide emissions by 2035. But a new report by the Climate Change Committee, an independent public body, suggests the target will be missed because only a fifth of the emissions cuts required are addressed by effective policies. A kidney donor voucher scheme in the US seems to be working. Kidney donors often want to help a friend, but they might not be compatible. The scheme encourages people to donate to genetically matched strangers in return for a voucher to allow their friend to be helped by a stranger too (JAMA Surgery, doi.org/gkd4).Almost a quarter of the mass of the world's forests, shrublands and grasslands is in the roots of these plants, according to a new global map. The carbon stored underground is equal to a decade's worth of human carbon dioxide emissions (Nature Ecology εt Evolution, doi.org/gkd5).
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