The Guardian: UN climate talks failing to address urgency of crisis, says top scientist

‚“Geoengineering has to be assessed, maybe even piloted already in case we need to deploy it,” [Johan Rockström] said. “It makes me very nervous. That is really playing with biological processes that might[nbsp]kick back in very unexpected ways. But I don’t think we should rule anything out – an emergency is an emergency.”‘

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