https://knowablemagazine.org/content/article/physical-world/2023/the-challenge-of-fusion-power https://10.1146/knowable-110123-1 Pursuing fusion power doi:10.1146/knowable-110123-1 Wed, 01 Nov 2023 00:00:01 GMT Physical World M. Mitchell Waldrop https://knowablemagazine.org/content/article/technology/2022/low-carbon-concrete https://10.1146/knowable-111622-1 For thousands of years, humanity has had a love affair with cement and concrete. But now, industry groups and researchers are seeking solutions to the huge amounts of carbon dioxide that cement-making generates.

]]> The road to low-carbon concrete doi:10.1146/knowable-111622-1 Wed, 16 Nov 2022 00:00:16 GMT Technology M. Mitchell Waldrop https://knowablemagazine.org/content/article/society/2022/what-can-cities-do-survive-extreme-heat https://10.1146/knowable-101922-2 What can cities do to survive extreme heat? doi:10.1146/knowable-101922-2 Wed, 19 Oct 2022 00:00:19 GMT Society M. Mitchell Waldrop https://knowablemagazine.org/content/article/food-environment/2020/recycling-meets-reality-feature https://10.1146/knowable-092920-1 Modern industry has made great strides in turning trash into tomorrow’s new products, but the process is still a long way from perfect. New technologies can help. Plus, updates on chemical recycling, design for recycling and dirty recycling.

]]> Recycling meets reality doi:10.1146/knowable-092920-1 Thu, 01 Oct 2020 00:00:01 GMT Food & Environment M. Mitchell Waldrop https://knowablemagazine.org/content/article/technology/2019/nuclear-goes-retro-much-greener-outlook https://10.1146/knowable-022219-2 Returning to designs abandoned in the 1970s, start-ups are developing a new kind of reactor that promises to be much safer and cleaner than current ones.

]]> Nuclear goes retro — with a much greener outlook doi:10.1146/knowable-022219-2 Fri, 22 Feb 2019 00:00:22 GMT Technology M. Mitchell Waldrop