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Urban green spaces provide important ecosystem services in cities, from recreation to the mitigation of noise and air pollution.

Recent crises are increasingly global and follow new kinds of patterns

“Vulnerable Twenty” Call for More Action and Investment in Climate Resiliency and Low-Emissions Development

After 2 years of international consultations, world's leading utilities publish major report for Paris summit to help realize national CO2 pledges

Rich countries are failing to fulfil pledges to make billions of dollars available to help the developing world tackle climate change.

Governor Brown signs landmark climate legislation to establishe world-leading energy efficiency and renewable energy goals for California.

The $20 Million Prize to tackle carbon dioxide emissions from fossil fuels

As JFK showed, great progress begins with a great goal, one that is bold yet feasible