For consecutive 26 years, nearly thousands of scientists from all over the world working on the front line of climate system science, they evaluate scientific research achievements of this field, leading the way for the sustainable development. Via long-term scientific accumulation it develops into a new scienceclimate change science. IPCC also conveys the latest, cutting-edge and the most comprehensive scientific information to research community, which has important significance for human sustainable development, environmental protection and ecological civilization construction.
Scientists’ research shows that human activities including the burning of fossil fuels has caused serious problem for the climate change, other greenhouse gases emissions intensify the global warming process, too, making global warming more seriously than any time before. Nowadays humans are enhancing a bad result from their own activities to the earth, research shows that there are mainly six types of greenhouse gas emissions from human activity, in which the warming effect of carbon dioxide should account for about sixty percent of the total effect of greenhouse gases.
Once carbon dioxide emissions into the atmosphere, it has 50 years to 200 years life time. The current global warming, is a result of the cumulative effect of carbon dioxide emissions. According to statistics, from 1850s to about 2050s, carbon dioxide that the developed countries emissions accounted for 95% on the world’s emissions; From 1950 to 2017, developed countries has an account also very higher about 77% of global total emissions. During about 200 years of industrialization, there were mass emission of greenhouse gases from developed countries, those who have unshirkable responsibility for climate change, should bear the main obligations; developing countries with few historical emissions, per capita emissions low, and belongs to the survival emissions, its primary task is to develop their economy, eradicate poverty, strengthen its strategies to cope with climate change. To cope with climate change, should give full consideration to development rights and develop space of developing countries.
Erich Fischer and Reto Knutti from Zurich, Switzerland atmospheric and climate science research center of the airy, using 25 climate model, calculating the relationship between the probability of abnormal weather events and global temperature rise. Research shows that since the industrial revolution, global temperature rise of 0.85 degrees Celsius has a very big impact. 75% extreme high temperatures and 18% extreme rainfall may be associated with climate change, and the more rare and extreme weather events, the more likely they are to blame for climate change.
Fisher and Reto Knutti made a research of the influence of temperature increase 2 degrees Celsius. They found that if the temperature rise 2 degrees, two-fifths of the storm is blamed for global warming.
Fisher said: "Originally, one-in-a-million the hot weather is expected will only happen once every 30 years, but since the global warming, the frequency has became a four-in-a-million. That means, three-quarters were extremely hot weather like this should not happen. Although global warming is not the only cause of abnormal weather, but its share is higher and higher."
Professor Peter Stott from the national weather service in Britain's Exeter indicated, for those policymakers who want to protect their country and the city, fisher and Reto Knutti statistics are thoughtful.
Mitigating climate change is the requirement of sustainable development. See from the view of social development, to slow climate change has a good impact on controlling the pollution and improving human health. From the view of the sustainable use of resources, to slow climate change could have a better way to improve energy efficiency, also good for reducing energy intensity and promoting global new energy use. More importantly, Mitigating climate change can stimulate technical innovation and system innovation, making human toward a path more prosperous and sustainable future.)
On the other hand, to slow climate change, developed countries and developing countries in the world should cooperate with each other to reduce greenhouse gas emissions together, although it would has all kinds of bad effect on economic development for developing countries that focus on developing their economy. Emissions of developed countries would certain have a cost, limiting greenhouse gases emissions in developing world, under the current technology and capital level, would affect speed and scale of the development. But, regardless of developed countries or developing countries, to slow climate change, , is consistent with the goals of sustainable development on the long view.()
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