Ancient invention may safely move fish across barriers while blocking invaders, study finds

Catch share programs—where fishermen are allotted a set quota of the catch—reduce the notoriously risky behavior fishermen are known for, like sailing in stormy weather, a new study finds.

As institutions look for ways to fight climate change, the College of the Atlantic has made the search for solutions a central part of its curriculum.

By releasing fish into the Chicago River, the city of Chicago aims to help clean up its ecosystem, as the fish hopefully will eat the river's excess algae.

Warming water has led to the collapse of coral reef systems in the western Indian Ocean, essential to fisheries, protecting shorelines, and reducing beach erosion and sea-level rise. Marine scientists from Nature Seychelles, as part of an international project to protect and restore the reefs, are promoting varieties of coral that they have found to be resistant to the rise in temperature.

Geography and climate change challenge the viability of sea-level cities in Vietnam, but architects, researchers, and urban planners work together to find creative solutions. One architect in Ho Chi Minh City designed green roofs to absorb the rainwater that causes floods.

Invasive weeds are ruining the habitat of New York's wild bog turtles. In Hudson River Valley, domestic goats and cows are being used to save bog turtles by grazing on this foreign weed. So far, the plan seems to be working as the turtles have shown signs of not just returning but also laying eggs in the area.

New water management technology implemented along the Columbia has significantly helped the fish population - specifically salmon - return to healthy numbers and has restored much of the community and industry that revolves around the river, including for native peoples.

Women4Climate is a new alliance of women mayors from major cities who are determined to act against climate change with or without federal support. Instead, they mentor each other in innovative solutions, cross-promote important causes, and share best practices to help stem the negative effects of greenhouse gas emissions, empowering women everywhere to participate.

Nearly a billion people living in the arid regions of the Himalayas depend on glaciers for their water supply. But with climate change, glaciers have been retreating drastically every year, threatening the life source of villagers like those in the Ladakh region of Kashmir. One engineer, Sonam Wangchuck, has come up with an ingenious feat of engineering to help the villages store glacier water by constructing stupas - or towers - using thorn branches that retain ice in tall structures, which melts and provides clean water for drinking and agriculture during the dry season.

"Ghost gear" are nylon nets and other waste left behind in our oceans by fishing boats - they cause massive environmental damage, releasing toxins in the water, ensnaring wildlife, and clogging up beaches. Now one organisation, the Healthy Seas Initiative, is working with fishermen and a sportswear company called ECONYL to retrieve abandoned nets from out of the ocean and convert the materials into clothing, carpets, and more.