Tag Archive for 'IPCC'
Reducing black carbon emissions from diesel engines, wood and coal burners would curb global warming
January 17th, 2013 by International Geosphere-Biosphere Programme
Black carbon is the second largest man-made contributor to global warming and its influence on climate has been greatly underestimated, according to the first quantitative and comprehensive analysis of this issue. The landmark study published in the paper ‘Bounding the role of black carbon in the climate system: A scientific assessment‘ in the Journal of […]
Current atmospheric C02 level must be reduced to protect coastal cities
January 3rd, 2013 by National Oceanography Centre
By comparing reconstructions of atmospheric CO2 concentrations and sea level over the past 40 million years, researchers based at the National Oceanography Centre, Southampton have found that greenhouse gas concentrations similar to the present of nearly 400 parts per million (ppm) were systematically associated with sea levels at least nine metres above current levels. The […]
Satellite telemetry shows average global sea level rising 60% faster than IPCC projections
November 30th, 2012 by Potsdam Institute for Climate Impact Research
The rate of sea-level rise in the past decades is greater than projected by the latest assessments of the Intergovernmental Panel on Climate Change, (IPCC) while global temperature increases are in agreement with its best estimates. This is shown in the paper “Comparing climate projections to observations up to 2011” published in the journal Environmental […]
Greenhouse gases in atmosphere continue to increase in 2011
November 20th, 2012 by World Meteorological Organization
The World Meteorological Organization reports that greenhouse gases in the atmosphere reached a new record high in 2011. Between 1990 and 2011 there was a 30% increase in radiative forcing – the warming effect on our climate – because of carbon dioxide (CO2) and other heat-trapping long-lived gases. According to WMO’s 2011 Greenhouse Gas Bulletin, […]
Our greenhouse gas emissions so far will cause sea level to rise inexorably for thousands of years
October 1st, 2012 by Institute of Physics
Our greenhouse gas emissions up to now have triggered an irreversible warming of the Earth that will cause sea-levels to rise for thousands of years to come, new research has shown. The results come from a study, published in a paper ‘Millennial total sea-level commitments projected with the Earth system model of intermediate LOVECLIM’ on […]
Human carbon emissions may turn ocean acidic at faster rate than during four major extinctions
March 1st, 2012 by The Earth Institute at Columbia University
The world’s oceans may be turning acidic faster today from human carbon emissions than they did during four major extinctions in the last 300 million years, when natural pulses of carbon sent global temperatures soaring, says a new study, The Geological Record of Ocean Acidification, published in Science. The study is the first of its kind […]
French climate researchers confirm need to rapidly reduce greenhouse gas emissions
February 15th, 2012 by Le Centre National de la Recherche Scientifique
The French climatology community has just completed a major exercise in the simulation of past and future climate conditions on a global scale. This new body of data confirms the conclusions of the most recent report by the Intergovernmental Panel on Climate Change (IPCC) (2007) on future changes in temperature and rainfall. By 2100, average […]
Global greenhouse gas emissions rebound to record levels in 2010
December 11th, 2011 by Centre for International Climate and Environmental Research
Following the dampening effect of the 2008 to 2009 global financial crisis, global carbon emissions from fossil fuel combustion have reached a record high of 9.1 Gigatonnes C1 in 2010. When including emissions from land-use change, the total emissions reached 10.0 Gigatonnes Carbon. In its annual analysis published online in the journal Nature Climate Change, […]
Petrol taxes reduce greenhouse gas emissions and don’t affect poor people disproportionally
December 1st, 2011 by University of Gothenburg
Increased petrol taxation is a very effective instrument to reduce greenhouse gas emissions. A common argument against such a measure is that it hits poor people the hardest. Yet a new study by researchers at the University of Gothenburg – the largest ever of its kind – shows that it is middle- and high-income earners […]
Global warming confirmed by 1.6 billion temperature records made during last 200 years
November 1st, 2011 by Berkeley Earth
Global warming is real, according to a major study by Berkeley Earth released on 20 October 2011. Despite issues raised by climate change skeptics, the Berkeley Earth Surface Temperature study found reliable evidence of a rise in the average world land temperature of approximately 1° Celsius since the mid-1950s. Berkeley Earth video representation of the […]
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