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Articles on Energy efficiency

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The Curiosity Mars rover, launched in November 2011, is powered by a nuclear battery that relies on thermoelectric materials to turn heat from radioactive decay into electricity. (NASA/JPL-Caltech/MSSS)

A new approach finds materials that can turn waste heat into electricity

More than two-thirds of the world’s energy is wasted as heat. Thermoelectric materials can convert unwanted heat into electricity, but finding the best ones has been slow.
Incentives like rebates for insulation or allowing homeowners to sell energy from solar panels were more popular than taxing for excess energy use. Lourdes Balduque via Getty Images

Americans support climate change policies, especially those that give them incentives and clean up the energy supply

A set of studies found people prefer incentives to disincentives, especially for individuals but also for businesses. They have views on clean energy and efficiency, too.
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‘Die of cold or die of stress?’: Social housing is frequently colder than global health guidelines

One quarter of monitored social housing properties recorded winter temperatures below World Health Organisation standards for more than 80% of winter, new research shows.
Wind turbines near Glenrock, Wyo. AP Photo/Matt Young

The US electric power sector is halfway to zero carbon emissions

Fifteen years ago electric power generation was the largest source of US greenhouse gas emissions. Now the power sector is leading the shift to a clean energy economy.
Residents of the Jacob Riis Settlement in New York City hold photographs of leaks, mold, peeling paint and other issues during a community town hall meeting on March 7, 2019. AP Photo/Kathy Willens

How to improve public health, the environment and racial equity all at once: Upgrade low-income housing

Building retrofits are no joke: They make dwellings healthier and more energy-efficient. And when they’re done in low-income housing, they also reduce inequality.

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