Aging dams pose growing threat: UN

Cover of the UNU-INWEH report. Credit: UNU-INWEH By 2050, most people on Earth will live downstream of tens of thousands of large dams built in the 20th century, many of them already operating at or beyond their design life, according to a UN University analysis. The report, “Ageing water infrastructure: An emerging global risk,” by […]

World’s ageing big dams pose ’emerging risk’: UN

Most of the world’s nearly 59,000 big dams—constructed between 1930 and 1970—were designed to last 50 to 100 years By 2050, more than half the global population will live downstream from tens of thousands of large dams near or past their intended lifespan, according to a UN report released Friday. Most of the world’s nearly […]

Plastics and rising CO2 levels could pose combined threat to marine environment

The combined environmental threat of plastic pollution and ocean acidification are having significant impacts on species living in our oceans, according to new research. An international team of scientists found that after three weeks of being submerged in the ocean, the bacterial diversity on plastic bottles was twice as great as on samples collected from […]