Chuyên mục: Môi trường – Environment

Photochemical smog threatens public health in HCM City

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Last update 18:49 | 24/01/2018

People living in HCM City are suffering from photochemical smog, a kind of air pollution that’s harmful to human health.

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HCM City people suffer from photochemical blindness, a kind of air pollution that’s harmful to human health.— Photo nld.com.vn

Photochemical smog is caused by the interaction of solar ultraviolet radiation, engine exhaust emissions and industrial emissions.

It has become a frequent phenomenon in recent years, especially during the hot and dry summer months. Photochemical smog is widespread in large cities such as Hà Nội and HCM City, posing increasingly serious risks to public health. Tiếp tục đọc “Photochemical smog threatens public health in HCM City” →

Chùm ảnh: Người Sài Gòn đặt hoa hồng trên gốc những hàng cây xanh bị đốn hạ ở đuờng Tôn Đức Thắng

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

Đăng ngày

Những ngày qua, hàng loạt cây xanh trên đường Tôn Đức Thắng (quận 1, TP. HCM) đang được đốn hạ, di dời để phục vụ cho việc xây cây cầu Thủ Thiêm 2. Công trình này sẽ bắc qua sông Sài Gòn, nối quận 1 và quận 2.

Theo Sở GT-VT TP. HCM, có 258 cây xanh sẽ bị chặt hạ và di dời vì ảnh hưởng đến giải phóng mặt bằng trong việc thi công cầu. Trong tổng số cây trên đường Tôn Đức Thắng, có 115 cây di dời và 143 cây bị đốn hạ.

Được biết, số cây xanh bị đốn hạ sẽ được thu hồi để chế tạo các sản phẩm phục vụ công cộng như bàn, ghế, sản phẩm điêu khắc. Đồng thời, ở khu vực này sẽ cho trồng mới 373 cây xanh trên diện tích 26.081 m2. Tiếp tục đọc “Chùm ảnh: Người Sài Gòn đặt hoa hồng trên gốc những hàng cây xanh bị đốn hạ ở đuờng Tôn Đức Thắng” →

New national park established in Cao Bang

~ Trần Đình Hoành ~ 1 bình luận
Last update 16:22 | 15/01/2018

VietNamNet Bridge – Deputy Prime Minister Trinh Dinh Dung has signed a decision to establish the Phia Oac-Phia Den National Park in the northern province of Cao Bang.

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Phia Oac – Phia Den National Park will be a more popular destination to tourists. — File Photo

The park is aimed at protecting the local ecology and diversity, comprising 90 genres of plants and 58 rare animals as well as cultural values, landscapes and ecological environment.

The park, which used to be a nature preservation area, has been established to protect the natural forest area and increase the green cover from 84 per cent in 2016 to 95 per cent by 2030, creating a more conducive environment for flora and fauna. Tiếp tục đọc “New national park established in Cao Bang” →

Freshwater under stress as acidity rises, scientists say

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by Thin Lei Win | @thinink | Thomson Reuters Foundation
Friday, 12 January 2018 16:49 GMT

 Most Popular

The first manifestation of freshwater acidification could be poor water quality due to a bacteria known for producing toxins

By Thin Lei Win

ROME, Jan 12 (Thomson Reuters Foundation) – Some freshwater ecosystems are acidifying rapidly as carbon dioxide emissions rise, according to research by German scientists, raising fears over fish stocks and water quality.

Only 1 percent of the world’s water is freshwater, but 40 percent of all fish are found there. Tiếp tục đọc “Freshwater under stress as acidity rises, scientists say” →

Groundwater in the Mekong River Basin

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3.11. Vietnam

• Salinization of groundwater in the coastal area

• Ammonium contamination in groundwater

• Groundwater level drops in Hanoi (-1 m/yr, total 30 m drop), Ho Chi Minh City (total 30 m), and in many other places in the Mekong River Basin; groundwater levels also decreased greatly.

• Land subsidence in Hanoi because of over-extraction

• High and increasing amount of arsenic in groundwater

Download full report http://unesdoc.unesco.org/images/0024/002436/243616E.pdf

Singapore has declared 2018 the year of climate action—so why are its banks still funding coal?

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eco-business_2018 is officially the year of climate action in Singapore, and yet the country’s powerful banks are bankrolling huge, greenhouse gas-producing coal-fired power stations in Asia Pacific, a report has found.

DBS is co-financing four 1200 MW coal-fired power plants in Vietnam—Nam Dinh 1, Nghi Son 2, Vinh Tan 4 and Vung Ang 2—and is a financial adviser for a number of planned coal-fired projects in Indonesia including the Jawa-6, Jawa-9 and Jawa-10 plants.

Coal fired power plant in Indonesia
New coal-fired power plant, Indonesia. Despite dire environmental consequences the Indonesian government and industrial partners will go ahead with the construction of the coal-fired power plant in Batang. Image: cpaulfell / Shutterstock.com
By Robin Hicks

Singapore banks are bankrolling fossil fuel power projects that are at odds with public promises to fight climate change, a report from Market Forces has found. Tiếp tục đọc “Singapore has declared 2018 the year of climate action—so why are its banks still funding coal?” →

Death toll from air pollution four times higher than traffic accidents

~ Trần Đình Hoành ~ Bình luận về bài viết này
Last update 07:50 | 12/01/2018

VietNamNet Bridge – Dr Le Viet Phu, a lecturer at Fulbright University, says the damages caused by air pollution to Vietnam in 2013 could be assessed up to $10 billion. 

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Vietnam is among 10 countries with the worst air quality

The figure was calculated based on WTP approaching method, which considers the willingness to pay for reduction in air pollution.

In 2013, the number of deaths because of PM 2.5 dust was 40,000, including 3,000 in HCMC. Tiếp tục đọc “Death toll from air pollution four times higher than traffic accidents” →

Lack of care leads to elephant rampages

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Last update 11:34 | 12/01/2018
VietNamNet Bridge – For centuries, residents in Phuc Son Commune, central province of Nghe An have lived comfortably with wild elephants, but as bamboo forests – the main diet of many elephants – are replaced with industrial trees, things are changing. Many elephant herds are now finding it difficult to find enough food to survive. 
Pu Mat National Park, wild elephants, Vietnam economy, Vietnamnet bridge, English news about Vietnam, Vietnam news, news about Vietnam, English news, Vietnamnet news, latest news on Vietnam, Vietnam
Elephants at the Pu Mat National Park in the central province of Nghe An. Many elephant herds in the province are now finding it difficult to find enough food to survive. — Photo: baonghean.vn

Last October, six wild elephants went on a rampage in a commune village and destroyed family crops.

The family called neighbours for help to chase the elephants away. However, the wild beasts refused to go until they had destroyed two hectares of acacias and other trees. Tiếp tục đọc “Lack of care leads to elephant rampages” →

Power stacked against Southeast Asia’s poor as China dams Mekong

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channelnewsasia

Communities along the mighty Mekong blame China for their shrinking catches. (Photo: AFP/TANG CHHIN SOTHY)

Read more at https://www.channelnewsasia.com/news/asiapacific/power-stacked-against-southeast-asia-s-poor-as-china-dams-mekong-9841686

KANDAL, Cambodia: Cambodian fisherman Sles Hiet lives at the mercy of the Mekong: A massive river that feeds tens of millions but is under threat from the Chinese dams cementing Beijing’s physical – and diplomatic – control over its Southeast Asian neighbours.

The 32-year-old, whose ethnic Cham Muslim community live on rickety house boats that bob along a river bend in Kandal province, says the size of his daily catch has been shrinking by the year. Tiếp tục đọc “Power stacked against Southeast Asia’s poor as China dams Mekong” →

What species is most fit for life? All have an equal chance, scientists say

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Sciencedaily.com
Elephants and giant sequoias have no advantage over algae and bacteria

January 8, 2018 Source:SUNY College of Environmental Science and ForestrySummary:There are more than 8 million species of living things on Earth, but none of them — from 100-foot blue whales to microscopic bacteria — has an advantage over the others in the universal struggle for existence.A trio of scientists report that regardless of vastly different body size, location and life history, most species are equally ‘fit’ in the struggle for existence.

There are more than 8 million species of living things on Earth, but none of them — from 100-foot blue whales to microscopic bacteria — has an advantage over the others in the universal struggle for existence.

In a paper published Jan. 8 in the journal Nature Ecology & Evolution, a trio of scientists from universities in the United States and the United Kingdom describe the dynamic that began with the origin of life on Earth 4 billion years ago. They report that regardless of vastly different body size, location and life history, most plant, animal and microbial species are equally “fit” in the struggle for existence. This is because each transmits approximately the same amount of energy over its lifetime to produce the next generation of its species. Tiếp tục đọc “What species is most fit for life? All have an equal chance, scientists say” →

Forty per cent of global e-waste comes from Asia

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Forty per cent of global e-waste comes from Asia

Copyright: Panos

Speed read

  • E-waste generated in 2016 equivalent to 4,500 Eiffel Towers
  • Asian countries account for 40 per cent of the discarded goods
  • Developing countries still lack formal e-waste recycling systems

By: Madhukara Putty

scidev.net_[NEW DELHI] Humans generated a staggering 44.7 million metric tonnes of electronic waste (e-waste) in 2016 — the equivalent of 4,500 Eiffel Towers, and five per cent more than the electrical and electronic goods discarded just two years earlier, says a new study.

The trend is set to continue, with volumes of e-waste expected to rise to 52.2 million metric tonnes by 2021. Tiếp tục đọc “Forty per cent of global e-waste comes from Asia” →

Brazil announces end to Amazon mega-dam building policy

~ Đào Thu Hằng ~ 1 bình luận

by  on 3 January 2018

  • Brazil’s government this week announced a major shift away from its policy of building mega-dams in the Brazilian Amazon – a strategy born during the country’s military dictatorship (1964-1985) and vigorously carried forward down to the present day.
  • The Temer government claims the decision is a response to intense resistance from environmentalists and indigenous groups, but while that may be part of the reason, experts see other causes as well.
  • The decline in political influence of Brazil’s gigantic construction companies caused by the Lava Jato (Car Wash) corruption investigation is likely a major cause of the change in policy. So is the current depressed state of Brazil’s economy, which makes it unlikely that Brazil’s huge development bank (BNDES) will invest in such multi-billion dollar projects.
  • While environmentalists and indigenous groups will likely celebrate the shift away from the mega-dam policy, experts warn that many threats to the Amazon remain, including pressure by Brazil’s ruralist lobby to open up conserved areas and indigenous lands to agribusiness, along with threats posed by new road, rail, waterway and mining projects.

Tiếp tục đọc “Brazil announces end to Amazon mega-dam building policy” →

Is Mekong River set to become the new South China Sea for regional disputes?

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The Beijing-led Lancang-Mekong Cooperation mechanism was set up to help ease tensions over development projects, but environmental groups are yet to be convinced

 South China Morning Post PUBLISHED : Tuesday, 02 January, 2018, 9:00pm
UPDATED : Wednesday, 03 January, 2018, 12:09am

Catherine Wong
Catherine Wong

Foreign ministers from the six countries through which the Mekong flows met in southwestern China last month to approve a draft of a five-year development plan for the river. But as state leaders prepare to finalise the proposal at a meeting in Cambodia later this month, environmental groups have expressed concern over what it could mean for Southeast Asia’s longest waterway.

Tiếp tục đọc “Is Mekong River set to become the new South China Sea for regional disputes?” →

Sông Mêkông: Một Biển Đông mới trong tranh chấp Trung Quốc-ASEAN ?

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RFI Mai Vân
media Ảnh minh họa : Một con kênh tại huyện Long Phú, tỉnh Sóc Trăng, châu thổ sông Mêkông cạn khô nước. Ảnh chụp ngày 08/03/2016. STR / AFP

Trong hai ngày 10-11/01/2018, hội nghị thượng đỉnh cơ chế Hợp Tác Lan Thương – Mêkông lần thứ 2 sẽ mở ra tại Phnom Penh, thủ đô Cam Bốt. Nhân dịp này, nhật báo Hồng Kông South China Morning Post, trong số ra ngày 03/01, đã phân tích thêm về cơ chế hợp tác do Trung Quốc chủ xướng, trên danh nghĩa là để góp phần giảm bớt căng thẳng đến từ các đề án trên sông Mêkông, nhưng đã bị các nhà bảo vệ môi sinh hết sức hoài nghi. Bài viết không ngần ngại đặt thành tựa câu hỏi : «Phải chăng sông Mêkông sắp trở thành một Biển Đông mới trong tranh chấp khu vực? Is Mekong River set to become the new South China Sea for regional disputes?».

Tiếp tục đọc “Sông Mêkông: Một Biển Đông mới trong tranh chấp Trung Quốc-ASEAN ?” →