Control of the northeastern Ukrainian city of Kupyansk may once again be contested after Russian troops recently crossed the ...

While tearing down a dam can cost millions of dollars, the price of keeping an obsolete barrier in place may be even steeper.

An update on the plans to remove the dams created for the Potter Valley Project and build a new water diversion facility at ...

For the first time in six years, water is gushing through a unique spillway in Lake Berryessa, just north of San Francisco.

In the U.S., a fierce race against time is ongoing. There is still no official information about the number of fatalities in ...

Grizzly said during the day his team uses improvised bunkers to keep their weapons hidden from Russian drones and artillery that operate from the far side of the river. By night, using an updated ...

KHERSON REGION, Ukraine — Just before dark, a half dozen Ukrainian soldiers clambered down a ramp into a trench hidden under a forested hill near the Dnipro River. They pulled back curtains of ...