The second – on oceans and the cryosphere – is due in September this year. You can find studies with a cooling over the next 10 years, and others showing an enhanced warming - so the variety of simulation studies seems confusing," he said.These are external links and will open in a new window"We only have mature scientific studies for a small number of topics and a small number of places, so we need to recognise that and figure out how, in an environment where the information is limited, we can still provide valuable information.Developing countries - particularly those experiencing what they believe to be climate impacts now - are especially adamant that adaptation must secure equal status to mitigation.The Korea conference - the IPCC's annual plenary - ended with the partial adoption of reform measures recommended in the IAC review.This is widely acknowledged as vital for policymaking. IPCC aims to reflect a range of views and expertise. "And the fifth assessment report will particularly look into this growing literature. An IPCC special report on the impacts of global warming of 1.5 °C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty. Without drastic action today, adapting to these impacts in the future will be more difficult and costly.The report also highlights a number of climate change impacts that could be avoided by limiting global warming to 1.5ÂºC compared to 2ÂºC, or more.
"Authors reported high confidence in statements for which there is little evidence, such as the widely-quoted statement that agricultural yields in Africa might decline by up to 50 percent by 2020," it noted.AR5 is due for publication in 2013-4, in four consecutive parts - science, impacts, mitigation and a synthesis - as in previous assessments.Chris Field, who is based at the Carnegie Institution for Science at Stanford University in California, said that AR5 will take this concept on board.The BBC is not responsible for the content of external Internet sites
The aim of these special reports is to provide “an assessment on a …
As populations, economies and standards of living grow, so does the cumulative level of greenhouse gas (GHGs) emissions. The fifth Intergovernmental Panel on Climate Change (IPCC) report states with 95 percent confidence that humans are the main cause of the current … ""The new approach is that we first assess our physical understanding of these fundamental processes: what are the elements that change them, how do they respond to a background change in albedo or temperature or shift in rain bands ?Known as Representative Concentration Pathways (RCPs), the aim is to better integrate data and forecasts on different aspects of the future.The IAC recommended that the next assessment must deal much more carefully and consistently with uncertainties - and Chris Field, co-chair of the IPCC working group on impacts, adaptation and vulnerability, indicated the message had been taken on board. ""It is an emerging field, the uncertainties are large.