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Climate change, deforestation and fires could cause the world’s largest rainforest to hit a tipping point that could turn much of it into dry scrubland. There would be an impact on biodiversity, livelihoods, carbon emissions and weather patterns. Scientists are desperately exploring just how big the effects might be, when the tipping point could occur — and what must be done to stop it.
Nobel laureate Linus Pauling’s ‘rules’ that describe the preferred crystal structures adopted by ionic compounds are more like loose guidelines. Chemists tested the five rules against 5,000 oxide structures and found that just 13% satisfied four of the five rules. “These rules, despite being taught in every chemistry textbook, have a much lower predictive power than one would think,” says chemist Geoffroy Hautier.
Features & opinion
In this four-part podcast series about writing a paper, scientists share the highs and lows of getting published for the first time, and what the experience taught them. In the second episode, four researchers and a manuscript editor explain the best way to respond when your paper is rejected or receives peer-review comments that you disagree with.
Environmental researchers Sheila Colla, Dana Prieto and Lisa Myers touch on art, history and science as they explore what pollinator declines have to do with a wave of protests that has swept across Canada. Demonstrators stand in solidarity with Wet'suwet'en hereditary chiefs, who object to a proposed natural-gas pipeline project in their traditional territory.