Most recent

• 

  What's energy efficiency and how much can it help cut emissions?

  8 Jun 2012:

  Energy efficiency means using less energy to achieve the same ends – though rebounds effects can reduce the savings

• Are there errors in the IPCC reports?

  6 Jun 2012:

  Two errors were discovered in the IPCC's latest assessment report but the world's science bodies have backed the organisation

• Are solar, wind and marine power too intermittent to be useful?

  29 May 2012:

  The intermittency of renewable energy sources can add costs and complications but not enough to offset their benefits

• Why do economists describe climate change as a 'market failure'?

  21 May 2012:

  Unregulated markets have overproduced CO2 because the costs are not priced into the transaction

• What is global dimming?

  11 May 2012:

  Global dimming is a reduction in sunlight reaching Earth's surface, almost certainly caused by air pollution

• What's a carbon footprint and how is it worked out?

  4 Apr 2012:

  A carbon footprint is an estimate of the total climate impact of an activity

• Do temperature records reliably show the planet is warming?

  2 Apr 2012:

  The temperature record and various different climate indicators all point to rising temperatures

• How well is the UK doing in cutting its emissions?

  28 Mar 2012:

  UK emissions have fallen fast since the 1990s though it's not clear that current policy can maintain these reductions

• Is there enough time to prevent widespread thawing of permafrost?

  14 Mar 2012:

  Scientists are concerned that global warming could cause much of the world's permafrost to thaw

• The world's temperature has always changed. What's different now?

  12 Mar 2012:

  The rate of change – and the contribution of man-made emissions – makes current global warming unique

• How do we know how warm or cold it was in the past?

  7 Mar 2012:

  Temperature records go back decades and earlier periods can be examined using 'proxies' sources such as ice cores

• What is permafrost and how does it relate to climate change?

  5 Mar 2012:

  Frozen permafrost soils contain huge amounts of carbon, which could be released as CO2 if the planet keeps warming

• Is Antarctica getting warmer and gaining ice?

  2 Mar 2012:

  Unlike most of the world, Antarctica has cooled in recent decades, possibly due to the effects of the ozone hole

• What are the options for financing climate change adaptation?

  28 Feb 2012:

  Developed countries will need to fund their own adaptation and contribute to funds to help poorer countries adapt

• What is climate change adaptation?

  27 Feb 2012:

  Adaptation involved changing infrastructure and practices to limit the risks posed by climatic changes

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