Maine’s Penobscot River flows freely where the Veazie Dam once stood. Dam removals have reopened the river to 12 native fish species.
Gregory Rec/Portland Portland Press Herald via Getty Images
Thousands of dams across the US are aging and overdue for maintenance. Taking them down can revive rivers, restore fish runs and create new opportunities for tourism and outdoor activities.
Ethiopian Minister of Water, Irrigation and Energy Seleshi Bekele (C) attends a meeting with his Egyptian and Sudanese counterparts, in Khartoum, Sudan, 21 December 2019.
The Nile Treaties prevent upstream countries from using the waters of the Nile without the consent of those downstream. This results in an Egyptian bias.
The Ganges delta spans India and Bangladesh and is home to more than 100m people.
Elena11 / shutterstock
Sea levels are rising, while deltas are being starved of sediment by upstream dams.
Renewable energy being installed at a community in the Northern Territory. Researchers have predicted Australia’s emissions are set to fall, but warn the renewables deployment rate must continue.
Australia's renewables revolution proves that there's cause for hope in our emissions reduction goals. But we cannot rest on our laurels.
The San Pedro Mezquital River is the last free-flowing river in Mexico’s western Sierra Madre.
Thousands of hydropower dams are under construction around the world. New research shows that by cutting off sediment flow, these dams can have big ecological effects on far-off bays and deltas.
These photovoltaics panels provide this village with energy now, but they could become obsolete when the main grid arrives.
Small-scale renewable energy projects can power rural areas not connected to the main grid. But investors may hesitate if future electrification remains unpredictable.
Turbines in Manchester Parish, Jamaica, the English-speaking Caribbean’s first wind farm.
Debbie Ann Powell
Even before the British billionaire invested US$1 billion in making the region 'climate-smart,' Jamaica, Barbados and Dominica were pioneering a renewable energy boom in the Caribbean.
After 48 hours of frantic effort, Brazilian rescue workers have called off their search for survivors at a collapsed dam in Minas Gerais state.
AP Photo/Leo Correa
Nearly 1,800 Brazilian dams are at risk of failure, according to the government. Fixing them is expensive – but ignoring aging dams can have considerable social, economic and environmental costs.
Munduruku tribal people are demanding that Brazil’s government respect their land rights.
AP Photo/Eraldo Peres
Brazil's new president could clear the way for plans to develop remote areas around the Tapajos River basin over the objections of the indigenous people who live there.
The Nile River during sunset in Luxor, Egypt.
The threat to use force to defend Egypt's right to water from the Nile has been a common theme through successive governments.
France, Germany and other European countries are increasing their use of renewable energy sources as well as storage solutions to help overcome their intermittent nature.
The shrinking supply of Colorado River water is evident at the Hoover Dam on the border of Arizona and Nevada.
AP Photo/Ross D. Franklin
Taking millions of gallons of water permanently out of the Colorado River amid a prolonged drought would surely start an interstate fight.
Computer servers mining bitcoin in Italy.
Bitcoin is often criticized for using up tons of energy. But its carbon footprint may not be that bad.
Survivors of the dam disaster take refuge at a temporary shelter in Laos’s Attapeu province.
ABC Laos News/EPA
Images of the aftermath of the Xepian-Xe Nam Noy dam collapse in Laos went around the world. But many other dam projects harm locals and the environment in less visible ways.
Development is peaking in the high country between India and China.
Vinay Vaars/Wikimedia Commons
For decades, China and India have clashed over their disputed Himalayan border. This clash is also playing out via a development boom that threatens the health of one of the world's biggest river catchments.
Small aircraft carry scientists high above the Southern Alps to survey glacier changes.
Forty years of continuous end-of-summer snowline monitoring of New Zealand's glaciers brings the issue of human-induced climate change into tight focus.
Rising seas, harsher weather, rainier days. The impacts of climate change make it harder for Caribbean countries to plan their transition toward renewable energy sources.
The 2017 hurricane season showed that Caribbean nations urgently need more resilient power grids. But the effects of climate change – including more severe storms – complicate the shift to renewables.
Hydropower plays a massive role electrifying many countries.
Many countries in eastern and southern Africa rely on hydropower for electricity generation and there are plans for several more dams.
The potential clean energy sources are all around Sydney, just waiting to be harnessed.
Collage by Rocco Furfaro
Sun, wind, waste biomass, geothermal, tides and waves: all these energy sources in Sydney's backyard add up to a zero-carbon energy solution for the city.
FCG / shutterstock
The region relies on seasonal flooding, yet energy demand is year-round.