Scientists’ issue final warning on global warming risks as world goes off track towards a 3°C rise instead of 1.5°C. Staying below the 1.5 degree mark will be drastic and expensive and will require unprecedented alterations in every aspect of society. The Intergovernmental Panel on Climate Change has published their report after 3years of research and 1week of negotiating between government officials and scientists in South Korea. The 33-pages-long summary is critical. While climate researchers are determined to follow their study, political representatives seem to be more concerned with and about living standards and economies. Although the compromises are inevitable, the important messages can be heard loud and clear- the first being reduction of impacts of climate change if the limit of 1.5°C can be maintained and the second being the nature of changes which will be unprecedented if warming is limited to 1.5°C, says Prof Jim Skea.
Kaisa Kosonen says that people need to act now. Researchers have deemed the idea that keeping temperature rise below 2C this century will make changes manageable as invalid. Instead they say that exceeding the 1.5°C mark would make affect the world’s livability which will probably happen in just 12years. Staying below it will require money close to 2.5% of global GDP for 20years in addition to huge changes undertaken both by individuals and governments. Even then machines, plants and trees will be required to capture carbon from air and keep it stored underground for eternity.
Five steps to achieve that are- declining CO2 emissions worldwide by 45% by 2030, renewable resources as sources of 85% of global electricity by 2050, reduction of coal to almost zero, requirement of 7million sq. km of land for energy crops and by 2050 global net emissions should be zero. But this will cost up to $2.4trillion on an average annually from 2016-35. Currently summer temperatures have become unbearable, trees living for hundreds of years have died and polar ice caps have started melting rapidly. Dr. Roberts says that the options open for implementation should be taken inconsideration soon. Social, political and technological changes will have to be undertaken to tackle the unavoidable problem. Dr. Abdulla says that handling the situation is about humanity and morality and not just aimed at saving small island nations.
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