Good news about the state of the planet might seem in short supply, but it's out there. Each week, DW's environment desk brings you what went right.

Dams generate hydropower, the world's largest share of clean energy. But for many freshwater fish, they're a barrier and a major reason their populations are struggling. A Seattle-based company is helping fish migrate around these obstacles by shooting them through a tube on a cushion of water — with no extra stress, injury, or lower survival rates.

Global warming trends mean more frequent, intense heat waves. That's bad news for cities, where extreme heat strains crucial infrastructure and risks public health. But cities around the world are finding solutions: planting trees, redesigning buildings, and supporting vulnerable communities with solar-powered cooling systems and vital resources.

In the United States, where environmentalism is a heavily politicized issue, almost 90% of faith leaders across all major Christian denominations believe in at least some degree of human-caused climate change. But only about half have ever discussed it with their congregations. Reverend Bradley Mattson and Brother Ken Taylor have used their sermons and small acts of environmental stewardship to encourage climate action — and have met with a varied response.

Singer-songwriter Vicent Kikabi, known as Green Daddy, is using music and grassroots education to spark sustainable change in Uganda. With neon-green hair and an urgent message, he is creating an "environmental army" of young learners who carry his message beyond the classroom.

Source: www.dw.com