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Dismantling buildings piece by piece to preserve the reusable parts within keeps materials out of landfills and creates more jobs that demolition.

In two decades solar cells have spread worldwide. Now a sun-powered golden sandwich promises to make them at least 10 times more efficient.

Greenhouse gas emissions impose a social cost – in ecosystem damage, in climate extremes, in human health and wealth. The US faces big losses.

Summary for Policymakers of IPCC Special Report on Global Warming of 1.5ºC approved by governments

Government welcomes report from industry leaders outlining ambitious goals to increase Canadian global competitiveness

Biofuels are no easy answer to climate change. Nor is storing captured carbon dioxide. The world’s great forests cut warming better than engineered solutions can.

Hazards multiply when extreme heat and humidity join in lethal combination. Scientists now know exactly where this twin danger could be greatest.

OECD publishes milestone report on Urban Sprawl as part of Sustainable Cities initiative