How heat pumps of the 1800s are becoming the technology of the future
Innovative thinking has done away with problems that long dogged the electric devices — and both scientists and environmentalists are excited about the possibilities It…
Articles by Knowable Magazine
The road to low-carbon concrete
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…
Climate change is altering the chemistry of wine
Warming, wildfires and unpredictable weather threaten to disrupt the delicate processes that underlie treasured wines. Researchers and producers are innovating to keep ahead. Soon after…
How cities can fight climate change
Urban activities — think construction, transportation, heating, cooling and more — are major sources of greenhouse-gas emissions. Today, a growing number of cities are striving…
Rethinking air conditioning amid climate change
ACs and refrigerators help keep people safe — but they also further warm the planet. Scientists are working on eco-friendlier solutions as global demand for…
Scientists can’t agree about Chernobyl’s impact on wildlife
Is Chernobyl a radioactive wasteland reeling from chronic radiation, or a post-nuclear paradise with thriving populations of animals and other life forms? Studies don’t always…
Now is the time to prepare for the economic shocks of battling climate change
Shedding reliance on fossil fuels is key to making the leap from a carbon-intensive present to a greener future. Experts say that smart planning and…
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Fighting climate change means taking laughing gas seriously
Agriculture researchers seek ways to reduce nitrous oxide’s impact on warming As nations and industries try to cut greenhouse gas emissions to tackle climate change,…
How to rebuild California forests, with climate in mind
After the catastrophic fires of the past decade, land managers may need to reseed vast acreages. Can they buffer against climate change in the process?…
Why solar geoengineering should be part of the climate crisis solution
Q&A — Climate scientist David Keith The controversial technology of reflecting sunlight away from the planet could help blunt the worst impacts of climate change…
Why green energy finally makes economic sense
Renewable energy experts have long hoped that solar and wind power would someday become the cheapest way to generate electricity, allowing the world to shift…
The tricky task of tallying carbon
To slow or stop global warming, the world agrees it must cut carbon dioxide emissions. But monitoring each nation’s output of greenhouse gases is not…
A middle path to sustainable farming
Agricultural economists are homing in on hybrid, low-input methods that will both safeguard the environment and feed the future billions Alfalfa, oats and red clover…
Toward greener plastics
Researchers and companies are working on new kinds of biodegradable packaging, bottles and other products that break down like compost. Plastic is kind of a wonder material. It’s cheap, light…