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.

Planet Earth: 8 billion humans and dwindling resources

Are eight billion humans too many for planet Earth? As we reach this milestone on November 15, most experts say the bigger problem is the overconsumption of resources by the wealthiest residents.

How did the patriarchy start? And will evolution get rid of it?

The patriarchy, having been somewhat in retreat in parts of the world, is back in our faces. In Afghanistan, the Taliban once again prowl the streets more concerned with keeping women at home and in strict dress code than ...

Wildfires spread, fish die off amid severe drought in Europe

Firefighters from across Europe struggled Thursday to contain a huge wildfire in France that has swept through a large swath of pine forest, while Germans and Poles faced a mass fish die-off in a river flowing between their ...

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