Английская Википедия:2019 in climate change
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Шаблон:Use dmy dates Шаблон:Year nav topic5 Шаблон:See also This article documents events, research findings, scientific and technological advances, and human actions to measure, predict, mitigate, and adapt to the effects of global warming and climate change—during the year 2019.
Summaries
- In November, BioScience published a Warning article stating "we declare, with more than 11,000 scientist signatories from around the world, clearly and unequivocally that planet Earth is facing a climate emergency" and that an "immense increase of scale in endeavors to conserve our biosphere is needed to avoid untold suffering due to the climate crisis".Шаблон:Sfn
Measurements and statistics
- NOAA's National Centers for Environmental Information (NCEI) and the WMO reported that 2019 was the second hottest year in its 140-year climate record—0.04°C (0.07°F) cooler than 2016—with the U.K. Met Office ranking it among the three hottest.[2]
- NOAA also reported that ocean heat content—the amount of heat stored in the upper levels of the ocean—was the highest ever recorded.[2]
- NOAA also reported that both the Antarctic and Arctic oceans recorded their second smallest average annual sea-ice coverage during the 1979–2019 period of record.[2]
- The WMO Global Atmosphere Watch in-situ observational network showed that carbon dioxide (410.5±0.2 ppm), methane (1877±2 ppb) and nitrous oxide (332.0±0.1 ppb) reached new highs in 2019, respectively constituting 148%, 260% and 123% of pre-industrial levels.[3]
- The fire season in Sakha (Siberia) was unprecedented in the 20-year MODIS record in terms of an earlier start and northern extent, with some fires burning only about 11 km from the Chukchi Sea.Шаблон:Sfn From March through June, the burned area was greater than 2.9 times the 20-year mean.Шаблон:Sfn
- The Rhodium Group estimated that China contributed over 27% of total 2019 global greenhouse gas emissions (14 of 52 gigatons), surpassing the emissions of all OECD countries combined, though trailing them in per capita emissions; China was followed by the U.S. (11%), India (6.6%), Europe-27 (6.4%).[4]
- 1 February 2022: a study published in PLOS Climate reported that, in 2019, 57% of the global ocean surface recorded extreme heat, compared to 2% during the second industrial revolution, and that, between the 1980s and 2010s, the global mean normalized heat index increased by 68.23%.[5] Researchers stated that "many parts of the subtropical and midlatitude regions have reached a near-permanent extreme warming state".[5]
Events and phenomena
Actions and goals
Political, economic, cultural actions
- In 2019, Amazon and Global Optimism co-founded The Climate Pledge whose signatory companies pledge net-zero carbon emissions by 2040, stimulating investment in low-carbon products and services.[6]
- In March, 16-year-old Swedish climate activist Greta Thunberg was nominated for the Nobel Peace Prize, also receiving a nomination the following year.[7]
- In September, Thunberg spoke at the 2019 UN Climate Action Summit, criticizing world leaders for inaction on climate change.[8]
- In December, Thunberg was named TIME Person of the Year.[9]
- In Norway, electric cars comprised 54% of all new vehicle sales for 2019, making it the first country to have sold more electric cars than petrol, hybrid, and diesel engines in a year.[10] The government planned to ban the sale of petrol and diesel cars by 2025.[10]
Mitigation goal statements
Adaptation goal statements
Public opinion and scientific consensus
- The consensus among research scientists on anthropogenic global warming grew to 100%, based on a review of 11,602 peer-reviewed articles on "climate change" and "global warming" published in the first 7 months of 2019.[12]
- A 2019 survey indicated a clear majority of people around the world think climate change is happening and that it is all or partly down to human actions.[13] However, 17% of Americans polled agreed that "the idea of manmade global warming is a hoax that was invented to deceive people", only Saudi Arabia and Indonesia having a higher proportion of people doubtful of manmade climate change.[13]
Projections
- In January, the World Economic Forum listed top 10 risks by likelihood (extreme weather events as #1, failure of climate change mitigation and adaptation as #2, man-made environmental damage and disasters as #6) and by impact (failure of climate change mitigation and adaptation as #2, extreme weather events as #3, man-made environmental damage and disasters as #9).Шаблон:Sfn
Significant publications
- Шаблон:Cite web
- Шаблон:Cite web
- Шаблон:Cite web
- Шаблон:Cite journal
- Шаблон:Cite journal
- Шаблон:Cite web The Report Card comprises specific reports including:
See also
- Climatology § History
- History of climate change policy and politics
- History of climate change science
- Politics of climate change § History
References
External links
Шаблон:Subject bar Шаблон:Climate change Шаблон:Human impact on the environment
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