Vietnam and U.N. to build storm-proof housing for coastal communities

Vietnam is one of 10 countries most affected by climate change, according to the latest annual Climate Risk Index published by the research organization Germanwatch.

Coastal residents are particularly vulnerable as storms increase in frequency and intensity. They are often trapped in poverty, accumulating debt or spending savings to rebuild or repair their homes, businesses and possessions.

Continue reading “Vietnam and U.N. to build storm-proof housing for coastal communities”

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Sea-level legacy: 20cm more rise by 2300 for each 5-year delay in peaking emissions

02/20/2018 – Peaking global CO2 emissions as soon as possible is crucial for limiting the risks of sea-level rise, even if global warming is limited to well below 2°C. A study now published in the journal Nature Communications analyzes for the first time the sea-level legacy until 2300 within the constraints of the Paris Agreement. Their central projections indicate global sea-level rise between 0.7m and 1.2m until 2300 with Paris put fully into practice. As emissions in the second half of this century are already outlined by the Paris goals, the variations in greenhouse-gas emissions before 2050 will be the major leverage for future sea levels. The researchers find that each five year delay in peaking global CO2 emissions will likely increase median sea-level rise estimates for 2300 by 20 centimeters.

Sea-level legacy: 20cm more rise by 2300 for each 5-year delay in peaking emissions

Every delay in peaking emissions by 5 years between 2020 and 2035 could mean additional 20 cm of sea-level rise (Mengel et al 2018)

Continue reading “Sea-level legacy: 20cm more rise by 2300 for each 5-year delay in peaking emissions”

Land subsidence, rising seas threaten Mekong Delta

Last update 16:34 | 03/08/2017

VietNamNet Bridge – The sustainable development of the Cuu Long (Mekong) Delta faces many threats, especially the rising sea level, worsening land subsidence and declining sedimentation, Dr Le Xuan Thuyen of the University of Natural Sciences has warned.

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A severe landslide that occurred along a bank of the Tien River in Thanh Binh District in the Mekong Delta province of Dong Thap last April. 

Speaking at a seminar last Thursday in HCM City titled “Challenges for sustainable development of the Mekong Delta,” Thuyen said: “The delta is formed by sediments and fairly steady sea levels. Now the two elements are no longer present and so the delta is facing an uncertain future.” Continue reading “Land subsidence, rising seas threaten Mekong Delta”

Mekong Delta protective forests wiped away by rising waters

Last update 07:20 | 14/04/2017
VietNamNet Bridge – Thousands of households along the coast in Ca Mau province have been living in fear as hundreds of meters of protective forests have been lost to the sea each year.

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Nguyen Cong Tuan of Dat Mui commune recently drove reporters to the Vam Xoay seaport, about two kilometers away from the central area of the commune.

“The sea here is compared with an ‘evil genius’. Strong big waves can sweep away houses and properties and threaten our lives any time,” he said, pointing to the seaport, where big waves were hitting the shore and roaring. Continue reading “Mekong Delta protective forests wiped away by rising waters”

Sea level rise will double coastal flood risk worldwide

Small but unstoppable increases will double frequency of extreme water levels with dire consequences, say scientists

High tides lash Mumbai on the western Indian coast.
High tides lash Mumbai on the western Indian coast. A sea level rise of 5-10cm could double the flood risk. Photograph: Pal Pillai/AFP/Getty

Small but inevitable rises in sea level will double the frequency of severe coastal flooding in most of the world with dire consequences for major cities that sit on coastlines, according to scientists.

The research takes in to account the large waves and storm surges that can tip gradually rising sea levels over the edge of coastal defences. Lower latitudes will be first affected, in a great swath through the tropics from Africa to South America and throughout south-east Asia, with Europe’s Atlantic coast and the west coast of the US not far behind. Continue reading “Sea level rise will double coastal flood risk worldwide”