Worshippers at Ash Wednesday mass.
AP Photo/Alan Diaz
Churches started to use ashes early as the ninth century as a symbol of repentance. In 1091, Pope Urban II ritualized their use to mark the beginning of Lent. Today, churches provide 'ashes to go.'
Solar and wind compete with coal power plants when it comes to energy storage systems.
AP Photo/Mel Evans
Energy storage, such as big batteries, on the power grid is generally seen as 'green' technology but the reality is more complicated, an analysis finds.
New research shows that computers, streaming video and other digital technologies are helping Americans spend more time at home and less out shopping and commuting, yielding measurable energy savings.
There’s lots to do when a car is driving itself.
Letting cars drive themselves could save some people huge amounts of time. What might they do when they would have been driving?
As more wind turbines have been put in place, the cost of wind energy has gone down.
Dad of T&S
If history is a guide, policies that promote wind power expansion will lead to lower prices – potentially beating fossil fuels in the US by 2030.
In an emergency, responders’ telecommunications could get delayed by overloaded networks.
City of Hampton, Virginia
A new data management system can give emergency responders a fast lane on the internet to help speed rescue efforts after a disaster.
Members of Patriotic Millionaires, whose privileged members advocate for higher taxes on the rich, met with lawmakers in this 2015 photo to discuss legislation to close the carried interest loophole.
When the wealthy become unlikely allies in the fight against inequality, they often take similar steps. It all starts with acknowledging their own privileges.
Poul Henningsen’s Artichoke Lamp, viewed from below at London’s Park Plaza Hotel.
Doc Searls/Wikimedia Commons
We asked five design experts – what's your favorite product of all time, and why?
It’s not just you suffering from overcooled offices.
cold office worker from www.shutterstock.com
Poor thermostat settings are making people uncomfortable and wasting hundreds of millions of dollars, an analysis shows. What can be done about this?
When it comes to TV use energy, calling one household ‘average’ can be misleading.
Evert F. Baumgardner - National Archives and Records Administration.
People who watch a lot of TV consume a disproportionate amount of electricity so we should tailor energy efficiency incentive programs to these and other big energy users.
Poor people are more vulnerable to the effects of climate change, such as extreme weather and sea level rise, yet have contributed little to the causes.
More than 2,000 academics, including philosophers and ethicists, are urging global leaders at the Paris climate summit to focus on the moral dimensions of climate change.
Exxon’s about-face on climate science exposes the critical role of internal corporate scientists.
Exxon wasn't the only giant corporation to have climate scientists in the 1980s. Scientists at GM and Ford also honed in on climate change, but they – and their companies – took very different paths.
The latest papal encyclical provides a lesson in public discourse.
The papal encyclical uses moral arguments for environmental protection, yet as a philosophical statement, it's a terrific example of "public reason."
L'Aquila is still in repair.
It has been five years since an earthquake hit the Italian city of L’Aquila leaving 309 people dead. In the aftermath one public official and six earthquake scientists were charged with multiple counts…
How much more glacial melting can the planet stand?
Industrial civilization must become technologically, economically, politically, and morally sustainable to hold the earth’s temperature below 2°C (3.6°F) higher than its preindustrial average. The problem…
Better communication may have saved lives in Italy’s L'Aquila earthquake.
The importance of clearly communicating science to the public should not be underestimated. Accurately understanding our natural environment and sharing that information can be a matter of life or death…