Human action causing climate change: IPCC
Stockholm: Human actions have been the dominant cause of climate change that is evident in most regions of the globe, says a new assessment by the Intergovernmental Panel on Climate Change (IPCC) Friday.
The fifth assessment report (AR 5) released here says global warming in the climate system is unequivocal and since 1950 many changes have been observed throughout the climate system that are unprecedented over the decades to the new millennia.
The report said each of the last three decades has been successively warmer at the earth`s surface than any preceding decade since 1850.
"It is extremely likely that human influence has been the dominant cause of the observed warming since the mid-20th century," the report highlighted.
The first part of the report deals with the physical science basis of climate change. During the next one year, the panel will release two more parts of the report based on thousands of peer reviewed studies.
"Our assessment of the science finds that the atmosphere and oceans have warmed, the amount of snow and ice has diminished, the global mean sea level has risen and the concentrations of greenhouse gases have increased," said Qin Dahe, co-chair of IPCC Working Group I.
Thomas Stocker, the other co-chair, said: "Continued emissions of greenhouse gases will cause further warming and changes in all components of the climate system. Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions."
"Global surface temperature change for the end of the 21st century is projected to be likely to exceed 1.5 degree Celsius relative to 1850 to 1900," said Stocker.
Projections of climate change are based on a new set of four scenarios of future greenhouse gas concentrations and aerosols, spanning a wide range of possible futures.
"This provides important insights into the scientific basis of climate change. It provides a firm foundation for considerations of the impacts of climate change on human and natural systems and ways to meet the challenge of climate change," said IPCC co-chair Rajendra Pachauri.
The report projects that heatwaves are very likely to occur more frequently and last longer while wet regions would receive more rainfall, and dry regions less.
"As the ocean warms and glaciers and ice sheets reduce, the global mean sea level will continue to rise, but at a faster rate than we have experienced over the past 40 years," said Qin Dahe.
The report further says as s a result of past, present and expected future emissions of CO2, "we are committed to climate change, and effects will persist for many centuries even if emissions of CO2 stop".
More from India
More from World
More from Sports
More from Entertaiment
- Heat ave continues in India, death toll climbs to over 1,400
- UP: Man chops off wife's nose, hair for dowry
- Megastar Amitabh Bachchan slapped with Rs 1 crore notice
- Zee Media Exclusive: The plight of yoga expert Tejaswi Sharma
- Kenyan lawyer offers to marry Barack Obama's daughter Malia
- Woman denied flat in Mumbai for being a Muslim
- 4 Indians in Forbes' 100 most powerful women list
- Gujjar stir: HC asks Rajasthan govt to clear rail track, roads
- Maggi likely to face ban in India!
- Salman Khan accident files burnt in Mantralaya fire
- AIB: The 'Third Gender's right to dignity'
- Gujjar stir: HC asks Rajasthan govt to clear rail track, roads- Part II
- TERI panel finds RK Pachauri guilty in sexual harassment case
- Rajasthan: High Court raps Chief Secy, DGP for failing to end Gujjar agitation
- Erstwhile Mysuru kingdom gets new king
- CBSE Class 10 (Class X Board) Result 2015 on cbse.nic.in, cbseresults.nic.in at 2 pm
- Sonia Gandhi 'unconstitutional authority' during UPA: PM Narendra Modi
- Hours after attacking NDA govt, Manmohan Singh meets PM Narendra Modi
- Check cbseresults.nic.in, cbse.in for CBSE Class 10 X Board Result at 2 pm
- PMO website revamped, now send e-mail to PM Modi directly
- GUJCET Results 2015 declared on gseb.org
- Centre moves SC against Delhi HC order on LG's powers; hearing on Friday
- Pakistan break Team India's long-standing ODI record at home soil
- Gujjar agitation: Centre sending additional forces to vacate rail tracks, say sources
- Rahul Gandhi takes another dig at NDA govt, says Manmohan gave lessons on economy to PM Modi
- Islamic State attracts young recruits with free honeymoon, stipend for family
- MSBSHSE Class XII HSC results 2015: Maharashtra Class 12th Board results declared on mahresult.nic.in
- Log on to cbseresults.nic.in, cbse.nic.in at 2 pm for Class 10th Result 2015
- Former Bihar CM Jitan Ram Manjhi meets PM Modi, triggers tie-up speculation
- Gujarat Board Results 2015: Gujarat Board HSC class 12th science results to be declared today at 9 AM on gseb.org