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Almost one-quarter of carbon dioxide released to the atmosphere is emitted in the production of internationally traded goods and services. Trade therefore represents an unrivalled, and unused, tool for reducing greenhouse gas emissions.
Water supplies are at risk of drying up as the climate warms, but mitigating climate change could mean shifting to water–intensive alternative energy sources. Brian Hoyle reports.
Under attack from pine beetles that are thriving in a warmer climate, Canada's boreal forests could become a sizeable source of emissions in the coming decade. Brian Hoyle reports.
