Climate change '95% man-made'

Scientists have said they are more certain than ever that humans are responsible for the majority of climate change, according to a major report on the issue. But the trend in the average global temperature has declined since 1998.

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UN report shows temperatures to rise this century

Temperatures are expected to rise this century largely due to man-made global warming, a major UN report is to suggest.

UN scientists are expected to say they are 95% sure humans are responsible for climate change in key report to be published today. The findings are expected to show:

  • Temperatures will rise by between 0.3C (0.5F) and 4.8C (8.6F) this century
  • The lower end of the range will only be possible with emissions cuts deeper than anything that major economies have said they are prepared to tolerate
  • Almost 200 governments have agreed in principle to limit global warming to a maximum rise of 2C (3.6F) above pre-industrial times
  • The governments have promised to work out a UN deal to limit their emissions accordingly by the end of 2015.

Sceptics say global warming 'not as urgent as believed'

Sceptics have said a slowing of the pace of warming this century after fast gains in the 1980s and 1990s, is a sign that global warming may not be as urgent a problem as previously believed, despite a major UN report on climate change due to be published today.

Some countries stressed that it was also "virtually certain", or at least 99 percent probable, that natural variations in the climate were not the sole cause.

The report will face extra scrutiny after the IPCC made errors in its 2007 report, including an exaggeration of the melt rate of Himalayan glaciers. An outside review of the IPCC found that the mistake did not affect its main conclusions.

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Report: Gulf Stream slow-down could 'cool Britain by 1C'

Britain's climate could get cooler over the next 80 years, a major report by the UN on global warming is to suggest.

Pendower Beach in Cornwall. Credit: PA

According to the Daily Telegraph, the UN Intergovernmental Panel on Climate Change (IPCC) will say that the circulation of warm and cold water in the Atlantic, which includes the Gulf Stream, will weaken by 20 to 44 per cent by the end of the century.

Scientists claim that such a slow-down in the Gulf Stream will have a big impact on Britain, causing cooling of about 1.8F (1C) and disrupting weather patterns.

UN climate report to be published throughout the year

The latest update on the state of the world's climate will be released today in Stockholm, Sweden.

Scientists and government officials from 195 countries have meeting all week ahead of the publication from the UN-sponsored Intergovernmental Panel on Climate Change (IPCC).

The report builds on the four previous assessment reports produced by the IPCC since it was established in 1988. It will be published throughout the year in several parts:

  • Part one: Physical science basis of climate change - September 2013
  • Part two: Dealing with the impacts, adaptation and vulnerability relating to climate change - March 2014
  • Part three: Assessing the mitigation of climate change - April 2014
  • Final part: Synthesis Report - October 2014

UN to pitch strongest case over global warming

A UN panel of global climate scientists are to make their strongest case yet for man-made global warming in a new report due to be released today.

Drafts show that the Intergovernmental Panel on Climate Change (IPCC) is set to pronounce that most of the warming of the Earth's surface since the 1950s is "extremely likely" - at least 95% probable - to be man-made.

Sweden's Environment Minister Lena Ek and Thomas Stocker, a member of an United Nations (UN) Intergovernmental Panel on Climate Change Credit: REUTERS/Bertil Enevag Ericson/Scanpix

The 30-page summary that the IPCC produces, the first of four about global warming in the coming year, is intended to be the main point of reference on the science of climate change for governments trying to develop their response to global warming.

Read: UN scientists '95% sure humans responsible for climate change'

Global warming: Leading voices debate the issue

Tomorrow, international experts will deliver their verdict on the state of climate change and are expected to say they are 95% percent certain it is happening.

ITV News' Science Editor Lawrence McGinty gathered leading leading voices in the global warming debate at London's Thames barrier to discuss the issue.

Read: UN scientists '95% sure humans responsible for climate change'

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