Thẻ: ocean pollution

Arctic Ocean acidifying up to four times as fast as other oceans, study finds

~ Đào Thu Hằng ~ Bình luận về bài viết này

theguardian.com

Scientists ‘shocked’ by rate of change as rapid sea-ice melt drives absorption of CO2 – with ‘huge implications’ for Arctic sea life

A thin layer of grey ice on a rocky shore
Norway’s Svalbard archipelago. Melting sea ice in the Arctic Ocean is driving faster warming and acidification, in a feedback loop known as Arctic amplification. Photograph: Anadolu Agency/Getty

Acidification of the western Arctic Ocean is happening three to four times faster than in other ocean basins, a new study has found.

The ocean, which absorbs a third of all of the carbon dioxide in the atmosphere, has grown more acidic because of fossil fuel use. Rapid loss of sea ice in the Arctic region over the past three decades has accelerated the rate of long-term acidification, according to the study, published in Science on Thursday.

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Take-away food packaging makes up most plastic waste in Vietnam: survey

~ Đào Thu Hằng ~ Bình luận về bài viết này

vnexpress.net

By Minh Nga   July 28, 2022 | 08:00 am GMT+7

Take-away food packaging makes up most plastic waste in Vietnam: survey

Take-away food and drink packaging is dumped in a public site in Thu Thiem New Urban Area in HCMC, May 2022. Photo by VnExpress/Quynh TranGarbage from take-away food and drinks make up 44 percent of plastic waste found at surveyed sites in Vietnam, according to the World Bank.

Plastic waste at both surveyed river and coastal sites across Vietnam came mostly from take-away-related sources.

Take-away related waste accounted for 43.6 percent in number and 35.1 percent in weight of the total plastic waste, followed by fisheries-related waste (32.6 percent in number and 30.6 percent in weight), and household-related waste (21.6 percent in number and 22.8 percent in weight), according to a World Bank report released this week.Total amount of plastic waste by source on surveyed sites in Vietnam2020-2021Take-away related wasteTake-away related wasteFisheries related waseFisheries related waseHousehold related wasteHousehold related wasteAgriculture related-wasteAgriculture related-wasteSanitary and medical related wasteSanitary and medical related wasteTake-away related waste●

 volume (%): 43.6

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The Looming Environmental Catastrophe in the South China Sea

~ Đào Thu Hằng ~ Bình luận về bài viết này

Heated maritime and territorial disputes conceal the severe damage being done beneath the waves.

thediplomat.com

By Murray Hiebert January 14, 2022   

Much of the focus on the South China Sea over the past decade has centered around the nationalistic territorial disputes between China and four Southeast Asian claimants and a geopolitical tussle between China and the United States over freedom of navigation in the contested waters. What is going on beneath the surface of the sea – overfishing, destruction of coral reefs, climate change, plastics pollution, ocean acidification – is equally threatening and may have a longer-term impact on the survivability of the sea with its rich fishing beds, potential gas and oil reserves, and bustling sea lanes.

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10 Rivers Contribute Most of the Plastic in the Oceans

~ Đào Thu Hằng ~ Bình luận về bài viết này

ScientificAmerica

The 10 rivers that carry 93 percent of that trash are the Yangtze, Yellow, Hai, Pearl, Amur, Mekong, Indus and Ganges Delta in Asia, and the Niger and Nile in Africa. The Yangtze alone dumps up to an estimated 1.5 million metric tons of plastic waste into the Yellow Sea.

 

Credit: Amanda Montañez; Source: “Export of Plastic Debris by Rivers into the Sea,” by Christian Schmidt et al., in Environmental Science & Technology, Vol. 51, No. 21; November 7, 2017

Our seas are choking on plastic. A staggering eight million metric tons wind up in oceans every year, and unraveling exactly how it gets there is critical. A recent study estimates that more than a quarter of all that waste could be pouring in from just 10 rivers, eight of them in Asia.

“Rivers carry trash over long distances and connect nearly all land surfaces with the oceans,” making them a major battleground in the fight against sea pollution, explains Christian Schmidt, a hydrogeologist at the Helmholtz Center for Environmental Research in Leipzig, Germany.
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How can development cooperation address ocean plastic pollution?

~ Đào Thu Hằng ~ Bình luận về bài viết này
23 January 2018

In the first weeks of 2018 there were (for me) unexpected announcements from both the EU and the UK Government on the urgent global issue of ocean plastic pollution. The EU intends to make all plastic packaging on the European market recyclable by 2030 and in her speech announcing the UK’s 25 Year Environment Plan, Prime Minister Theresa May committed the UK to eliminating all “avoidable plastic waste” by 2042. The Prime Minister also said it would direct UK aid to help developing nations reduce plastic waste, which could indicate a new direction for the UK’s and other countries’ aid programmes.

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Ocean acidification is deadly threat to marine life, finds eight-year study

~ Trần Đình Hoành ~ Bình luận về bài viết này
Guardian

Plastic pollution, overfishing, global warming and increased acidification from burning fossil fuels means oceans are increasingly hostile to marine life

Scientists haul in samples of seawater in Svalbard, Norway. Greenpeace is working with the German marine research institute to investigate ocean acidification
Scientists haul in samples of seawater in Svalbard, Norway. Greenpeace is working with the German marine research institute to investigate ocean acidification. Photograph: Nick Cobbing/Greenpeace

Environment correspondent

If the outlook for marine life was already looking bleak – torrents of plastic that can suffocate and starve fish, overfishing, diverse forms of human pollution that create dead zones, the effects of global warming which is bleaching coral reefs and threatening coldwater species – another threat is quietly adding to the toxic soup. Tiếp tục đọc “Ocean acidification is deadly threat to marine life, finds eight-year study” →