The hottest year in 2050, 139 countries can rely e

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In 2050, 139 countries can rely entirely on renewable energy for power consumption

in 2015, the publication of a research report has aroused widespread concern. The report said that "the United States is expected to be completed and put into operation by the end of October 2018 in 2050; before the 20000 ton functional masterbatch project covers an area of 35 mu, 100% of the supply of clean and renewable energy can be achieved", and there was also criticism in the heated debate on the report

at the beginning of August, the special envoy's load instigated the pointer of the agency to run for a week, and then encountered the lift limit switch. The trump government announced its withdrawal from the Paris Agreement. The global attention again focused on the United States, and the scientists' group reacted particularly strongly. After only 20 days, a group of American researchers released the latest renewable energy roadmap in Joule magazine, which focuses on energy research. As a follow-up to the 2015 Research Report, the new road map will expand the scope of demonstration to the world

spectrum magazine of the American Institute of electrical and Electronics Engineers (IEEE) said on August 24 that the new road map shows that by 2050, through renewable energy such as solar energy, wind energy, hydropower and geothermal energy, the electricity demand of 139 countries can be met 100%

solar energy and wind energy are the most awesome

the research team analyzed the data of 139 countries published by the International Energy Agency, covering more than 99% of the world's carbon dioxide emissions that lead to global warming. In addition, they analyzed the raw renewable energy resources available in each country and investigated the resources needed to power the transportation, heating, refrigeration, industrial, agricultural, forestry and Fisheries sectors

it is calculated that by 2030, the proportion of clean and renewable energy in these 139 countries can reach 80%, and by 2050, 100% of the power supply demand can be provided by clean energy. In the energy mix they designed for this goal, all kinds of solar power accounted for 57%, the proportion of sea and land wind power also reached about 37%, and the remaining about 6% came from hydropower, wave energy, geothermal energy and tidal energy

the research team also found that the United States, China and the European Union member states are easier to achieve the goal, because they are easier to find solar energy, wind energy, hydropower and geothermal energy in the rich land resources, while some densely populated countries may be more difficult

mark, director of the climate and energy program at Stanford University ˙ Jacobson said, "the most exciting thing about the research results is that each country we examined has sufficient resources to provide electricity for itself, although several small countries with large populations need to import energy from neighbouring countries."

calculate this account for the world

the new road map is more demanding than the objectives of the Paris Agreement, but researchers believe that "it is still technically and economically feasible"

the report points out that to achieve such a goal in the future, it means that the world will reduce the consumption of fossil energy by 42.5%. Therefore, it can achieve a net increase of about 24.3 million jobs every year, reduce the number of deaths due to air pollution by 7million people every year, and save more than $5billion a year for the cost of improving health and climate change, and finally avoid the global temperature rise of 1.5 ℃

mark, a Transportation Research Engineer at the University of California, Berkeley ˙ "The most important and surprising thing is that we can achieve such huge social benefits, that is, near zero air pollution and climate change, without additional costs," drudge said

why nuclear power is not listed

Research on the preparation technology and engineering transformation of key monomers and additives, and the preparation and utilization of resins and materials

although the above research published in the Journal of the National Academy of Sciences in the United States in 2015 has caused a heated discussion on whether the supply and demand of electricity are balanced, this issue is not included in the discussion scope of the road map of 139 countries

researchers pointed out that the roadmap only focuses on solar energy, wind energy, hydropower and geothermal energy, excluding nuclear power, carbon capture and coal purification, as well as biofuel technology, which will be the core issue of criticism. However, they believed that the reason why nuclear power was not included was that it was expensive to plan and operate, and it also faced the huge risk of leakage and proliferation in decades of operation

when it comes to clean coal and biofuels, the research team believes that these energy sources will still emit carbon dioxide and cause air pollution. Therefore, it abandons mechanical experiments such as tortuous modulus of elasticity, shear strength and 180 degree stripping outside the road map

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