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

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.

Biden puts U.S. back into fight to slow global warming

President Joe Biden returned the United States to the worldwide fight to slow global warming in one of his first official acts Wednesday and immediately launched a series of climate-friendly efforts that would transform how ...

Storing information with light

New photo-ferroelectric materials allow storage of information in a non-volatile way using light stimulus. The idea is to create energy efficient memory devices with high performance and versatility to face current challenges. ...

World migration down 30 percent due to pandemic: UN

The coronavirus pandemic has slowed global migration by nearly 30 percent, with around two million fewer people than predicted migrating between 2019 and 2020, according to a UN report released on Friday.

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