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By Tim Radford
For the entire 2.5 million years of the Ice Age epoch called the Pleistocene, it was a low-carbon world. Atmospheric carbon dioxide hovered around 230 parts per million. Not only did Homo sapiens evolve on a low-carbon planet, so did Homo erectus and most other human species now known only from fossil evidence in Europe and Asia.
By Daniel Ross
Ten years ago, two climate scientists, Mark Jacobson and Mark Delucchi, published a groundbreaking article in Scientific American outlining a road map for becoming 100 percent reliant on energy generated by water, wind and sun by 2030. This was something that needed to be done "if the world has any hope of slowing climate change," the researchers warned at the time.
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'The Window of Opportunity for Action Is Almost Closed': UN Report Shows Record Levels of Climate-Changing Gases
The atmospheric concentrations of the three gases most responsible for climate change reached record highs in 2017, the most recent annual Greenhouse Gas Bulletin released Thursday from the UN's World Meteorological Organization (WMO) found.
The concentration of carbon dioxide in the atmosphere is now at 405.5 parts per million (ppm), or 146 percent of pre-1750 levels. The concentration of methane is now at around 1,859 parts per billion (ppb), around 257 percent of pre-industrial levels, and the concentration of nitrous oxide reached about 329.9 ppb, or 122 percent of pre-industrial levels.
Today is election day in the U.S., which means that if you are a U.S. voter whose state doesn't have early voting, today is the day to head to the polls and make your voice heard.
When new technologies like electricity or the dishwasher took off in the 20th century, most of the people racing to adapt them had no idea what trading candles for light bulbs would do to the Earth's climate.
Researchers at the University of Hawaii have set out to make sure that doesn't happen again when it comes to a 21st century technology that has some people very excited: Bitcoin.
Andrew Wheeler, the acting administrator of the EPA, touted that the report shows that regulations are unnecessary to slash carbon emissions.
The Royal Swedish Academy of Sciences announced the 2018 Nobel Prize in Economics to a duo for their work on how the world can achieve sustainable growth.
The prize was divided equally to William D. Nordhaus of Yale University and to Paul M. Romer of New York University's Stern School of Business, both Americans, who have "designed methods for addressing some of our time's most basic and pressing questions about how we create long-term sustained and sustainable economic growth," the academy said Monday in a press release.
Planting a garden has the power to change the world. Regenerative gardens can help reverse global warming by restoring soil health. We're bringing victory gardens back. This time, it's for the climate.
Update, September 10: The campaign for this project has switched from Indiegogo to Kickstarter and went live on September 6.
Two San Francisco fashionistas are working on an innovative shoe that is good for both your feet and your carbon footprint. The Bendy is a sneaker flat for women made ethically in the U.S. using less than one-sixth the carbon that it takes to produce the average sneaker, according to the product's media kit.
When the World Cup kicks off in Russia Thursday, it will be the first World Cup whose stadiums were required by the Fédération Internationale de Football Association (FIFA) to incorporate sustainability into their construction and renovation, according to the FIFA report More Sustainable Stadiums.