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Northern Hemisphere summers may last nearly half the year by 2100

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IMAGE: Changes in average start dates and lengths of the four seasons in the Northern
Hemisphere mid-latitudes for 1952, 2011 and 2100.
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Credit: Wang et al 2020/Geophysical Research Letters/AGU.
WASHINGTON Without efforts to mitigate climate change, summers spanning nearly six months may become the new normal by 2100 in the Northern Hemisphere, according to a new study. The change would likely have far-reaching impacts on agriculture, human health and the environment, according to the study authors.
In the 1950s in the Northern Hemisphere, the four seasons arrived in a predictable and fairly even pattern. But climate change is now driving dramatic and irregular changes to the length and start dates of the seasons, which may become more extreme in the future under a business-as-usual climate scenario. ....

China Sea , Brunei General , United States , Li Xin Wu , Tibetan Plateau , China General , Banglin Zhang , Yuping Guan , Wenju Cai , Jianping Huang , Congwen Zhu , Xiaodan Guan , Scott Sheridan , Jiamin Wang , Wenjie Dong , Kent State University , Oceanography Laboratory Institute For Advanced Ocean Study , Chinese Academy Of Meteorological Sciences , College Of Marine Sciences , University Of Chinese Academy Sciences , School Of Atmospheric Sciences , Equity Center , Ministry Of Education , Geophysical Research Letters , Key Laboratory Of Tropical Oceanography , Ocean University Of China ,

New Research Tool Gives More Accurate Picture of Global Temperature Shifts

Global warming is having major effects on the Yukon, shown here. (Duane Froese / University of Alberta)
(CN) As climate change receives more attention across the globe, it’s crucial that scientists and researchers have the most accurate data possible on global temperatures. Researchers out of China’s Sun Yat-Sen University released Thursday a newly merged global surface temperature dataset to assist in climate research.
Part of the difficulty in creating an accurate picture is the lack of observational data in some regions such as the Arctic or high-altitude areas like the Qinghai-Tibetan plateau, making it difficult to assess temperature variations adequately and consistently across the globe. ....

Qingxiang Li , Southern Laboratory Of Ocean Science , China Sun Yat Sen University , Duane Froese University Of Alberta , National Oceanic , Atmospheric Administration , School Of Atmospheric Sciences , Advances In Atmospheric Sciences , Sun Yat Sen University , Key Laboratory Of Tropical Atmosphere , Duane Froese , Atmospheric Sciences , China Merged Surface Temperature , Key Laboratory , Tropical Atmosphere Ocean System , Southern Laboratory , Ocean Science , தெற்கு ஆய்வகம் ஆஃப் கடல் அறிவியல் , சீனா சூரியன் யத் சென் பல்கலைக்கழகம் , ட்வேந் ப்ரொஎசெ பல்கலைக்கழகம் ஆஃப் ஆல்பர்ட்டா , தேசிய கடல் , பள்ளி ஆஃப் வளிமண்டலம் அறிவியல் , சூரியன் யத் சென் பல்கலைக்கழகம் , விசை ஆய்வகம் ஆஃப் வெப்பமண்டல வளிமண்டலம் , ட்வேந் ப்ரொஎசெ , வளிமண்டலம் அறிவியல் ,

Reconstruction shows increased global warming trends since 1850s

Credit: Qingxiang Li
Earth is warming rapidly, but there is too little observational data in some regions such as the Arctic or high-altitude areas like the Qinghai-Tibetan plateau to adequately and consistently assess temperature variations across the globe. To better understand how temperatures have increased, an international team led by researchers at Sun Yat-Sen University in China has released a newly merged global surface temperature dataset, including reconstructed land and marine measurements from the 1850s to 2018. The study provides evidence that there was a consistent increased warming trend compared with previous estimations, which closely matches the available observational data and updated simulations covering the past two decades. ....

Zhao Yang , United States , United Kingdom , Panmao Zhai , Haiyan Li , Boyin Huang , Phil Jones , Wenbin Sun , Jiayi Cheng , Wenjie Dong , Qingxiang Li , University Of East Anglia , Southern Laboratory Of Ocean Science , Chinese Academy Of Meteorological Sciences , National Oceanic , Atmospheric Administration , National Centers Of Environmental Information , Climate Research Unit , School Of Atmospheric Sciences , Sun Yat Sen University , Advances In Atmospheric Sciences , Key Laboratory Of Tropical Atmosphere , Ministry Of Education , Atmospheric Sciences , Key Laboratory , Tropical Atmosphere Ocean System ,