11 Democrats still in U.S. presidential race as New Hampshire votes

WASHINGTON (Reuters) - The presidential nominating contest for both the Democratic and Republican parties continues Tuesday in New Hampshire. FILE PHOTO: Democratic 2020 U.S. presidential candidate and former Vice President Joe Biden speaks during a campaign event in Gilford, New Hampshire U.S., February 10, 2020. REUTERS/Carlos BarriaFor Democrats, what was once a field of more than 20...

Synergy with Hydropower Plants Boosts Biogas Production in Brazil — Global Issues

Water falls through these enormous pipes to activate the 20 turbines of the Itaipu hydroelectric plant on the Brazilian-Paraguayan border. Caring for the water in the reservoir, as well as reducing the pollution in the rivers that run into it, help make this binational plant one of the most efficient in the world, with a projected useful life of 184 years. Credit: Mario Osava/IPSby Mario Osava...