Led by China, fish farms 'soaring'

Nearly half of the fish eaten around the world now comes from farms instead of the wild, with more foresight needed in China and other producers to limit the ecological impact, a study said on Tuesday.

Trapped sediment in dams 'endangers' water supplies: UN

Thousands of the world's large dams are so clogged with sediment that they risk losing more than a quarter of their storage capacity by 2050, UN researchers said Wednesday, warning of the threat to water security.

Jellyfish exterminator robot developed

A team led by KAIST Civil and Environmental Engineering Department's Professor Hyeon Myeong has just finished testing the cooperative assembly robot for jellyfish population control, named JEROS, in the field.

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