www.hcn.org See the LA River at a fragile crossroads Photographer Pablo Unzueta explores an urban river at peril and in constant flux.
Solutions www.nationalgeographic.com Parisians want to recover a legendary river now buried under concrete The Bièvre flowed through Victor Hugo’s Paris. Conservation efforts may bring the historic river back.
Critical minerals are ‘oil of 21st century’ as demand fuels poverty and pollution in poorer countries