Running ships on electricity, a casket made from mushrooms, a Lake Ontario shipwreck older than Canada, and more

Looking back at some of our favourite stories from 2025:Many of our stories look at environmental challenges and solutions, from reducing the carbon footprint of ships in port, to reducing your own carbon footprint after death. And merchants finding ways to reduce food waste in Nigeria's markets, while others boost local sustainable wool production in Europe.Also: tackling threats to wildlife. Scientists in B.C. have a new tool to fight a disease which has been devastating bat colonies throughout North America. Meanwhile other animals face a different kid of threat: trains. We look at ways to prevent wildlife from being hit.Plus: Divers in Lake Ontario went searching for one shipwreck, but found another one much older. The intact wreck is believed to predate Conferderation and could shed light on a little understood part of the region's history.