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Variety is not just life’s spice, but its support system. But it may not be so simple for mixed forests, researchers say.

Geo-engineering might be possible – but so far it doesn’t look practical. Yet another study sees dangers in the technofix.

Largest Gathering of Canada's Cement and Concrete Industry Heads to Parliament Hill to help Canadians face the challenges of reducing carbon emissions and adapting to climate change.

Natural evaporation could provide most of the electricity used by the US and also save about one fifth of the water it uses, scientists believe.

Paying for forests conserves a vital world resource. But somebody must pay the locals a tangible share of the intangible global gains.

A group of physical chokepoints - roads, ports and waterways - could disrupt the flow of world food trade, with drastic consequences.

The winners of an annual worldwide competition to spread clean energy have been urged to see it as a sustainability revolution.

Fund to reduce greenhouse gas emissions and generate clean growth