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Both emissions reduction and adaptation will need to be much stronger than currently planned if dangerous global impacts of climate change are to be avoided. June's UN talks in Bonn and July's G8 summit present opportunities for world leaders to face this challenge.
By 2050, there will be an estimated 9 billion humans on the planet. Kerri Smith asks whether curbing the world's burgeoning population could help in tackling climate change.
Vast technological opportunities exist for providing the world with clean energy in the future, but the real debate is over the policies needed to decarbonize the growing global economy.
With warming expected to worsen public health problems, policymakers are being urged to fight disease and climate change simultaneously. Brian Hoyle reports.
