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How Climate Friendly is Bike Sharing? It’s Complicated

How Climate Friendly is Bike Sharing? It’s Complicated

There's a lot scientists don't know about how bike sharing programs encourage less driving, and less CO2 from being emitted from car tailpipes. But there's a big benefit to bike sharing: It's a "gateway drug" to all kinds of cycling, and that's a big climate benefit.… Read More

Marine Economy Takes a Dive as Ocean Acidity Rises

Marine Economy Takes a Dive as Ocean Acidity Rises

The waters off the U.S. state of Alaska are some of the best fishing grounds anywhere, teeming with salmon and with shellfish such as crab. But a new study, funded by the U.S. National Oceanic and Atmospheric Administration(NOAA), says growing acidification of Alaska’s waters, particularly those off the southern coast, threatens the state’s whole e… Read More

Europe’s Forests Suffer Effects of Climate Change

Europe’s Forests Suffer Effects of Climate Change

Climate change is here, it’s happening now, and for the last few decades it has been demonstrably bad news for many of Europe’s forests. An international team of researchers say in a report from the European Forest Institute that climate change is altering the environment, and it is long-lived ecosystems like forests that are particularly vulnerabl… Read More

New CO2 Satellite Sends First Data Back to Earth

New CO2 Satellite Sends First Data Back to Earth

NASA’s new carbon dioxide-monitoring satellite just opened its eyes for the first time. Based on the initial data its sending back to Earth, it appears to have 20/20 vision and scientists will soon have plenty more data to analyze. The satellite, dubbed the Orbiting Carbon Observatory-2, or OCO-2, was launched last month as part of an effort to be… Read More

Keystone XL Will Spike Oil Demand and CO2, Study Says

Keystone XL Will Spike Oil Demand and CO2, Study Says

A new study published Sunday in the journal Nature Climate Change says the State Department may have underestimated the pipeline’s CO2 emissions by as much as four times because consumer demand for oil will rise as new crude oil coming on the market because of Keystone XL will drive global crude oil prices down, the study says. … Read More

Steady Increase in Flights Will Outweigh Carbon Cuts

Steady Increase in Flights Will Outweigh Carbon Cuts

percent of global carbon dioxide emissions coming from its aircraft. The problem is the speed at which aviation itself is growing. One aircraft builder believes the number of planes in service in 2011 will have doubled by 2031. Whatever the industry’s efforts to reduce its carbon emissions, they will be outweighed by the growth in air traffic, even… Read More

For Canada, Tar Sands Are Bigger Than Keystone XL

For Canada, Tar Sands Are Bigger Than Keystone XL

If it is ever built, the Keystone XL Pipeline will exist for one reason: To move Canadian tar sands oil from remote Alberta to refineries in Texas. But for Canada, the story of the tar sands' future hinges on the great economic pressure the country is feeling to bring its vast reserves of crude oil to market.… Read More

Indigenous Groups Give Tropical Forests a Carbon Boost

Indigenous Groups Give Tropical Forests a Carbon Boost

Any path forward to reduce the globe’s carbon emissions goes through tropical forests. They serve as a sink to sequester human emissions, but deforestation risks sending those assets up in smoke. A recent report argues that to avoid that outcome, indigenous communities should be involved in forest management. Currently deforestation and land use c… Read More