Climate Change

Long-term climate prospects brightened somewhat in 2015. Pope Francis put climate care on the moral and political agenda. President Obama rejected the Keystone XL dirty-oil pipeline. Denialist heads of state were routed in Canada and Australia, and their brethren in the U.S. faced growing ridicule. To cap it off, nearly 200 nations signed the UN Paris accord, committing to cutting emissions. Meanwhile, U.S. coal use took another double-digit plunge. And U.S. electricity generation from zero-carbon photovoltaic solar cells continued to soar and has now grown 20-fold in just five years.

Uber is celebrating. DC passed an Uber-legalization law that Uber thinks cities the world over should follow. The problem is, most cities have much more tightly regulated taxi industries than DC, with a far higher cost of entry. In those cases, letting Uber get away with providing taxi services while complying with none of the rules is unfair. The taxi companies have been screaming about this for a while now. Uber's response is something like, "Catch me if you can, old geezer." DC's contribution to that conversation strengthens Uber's position.

Dramatically expanding transit and active transportation over the next few decades could reduce carbon emissions from urban transport 40 percent more than following a car-centric trajectory. And it could also save the world economy $100 trillion.

Earth Day is a week from tomorrow. How many people will drive to their local environmental festival without even a second thought to how they got there?

If sea levels rise just one foot in the Washington, DC, area, nearly 1,700 homes could be lost. Is the region’s transportation planning agency doing enough to stop that from happening? Several environmental and smart-growth organizations in the region are saying no. Seventeen groups have signed on to a letter, being delivered today, urging the agency to take action. The comment period on the agency's latest long-range transportation plan closes tomorrow.

How will Americans get around in the year 2030? A recent report from the RAND Corporation lays out two "plausible futures" developed though a "scenario analysis" and vetted by outside experts. While RAND takes a decidedly agnostic stance toward the implications of each scenario, the choice that emerges is still pretty stark.

Houston-based architecture firm SWA Group has heads spinning today: Is their proposal to build a bikeway next to the Keystone Pipeline pure satire or a serious attempt to "bike-wash" the most reviled fossil fuel distribution project of our day?

President Obama announced a sweeping package of measures to address climate change today. But with a couple of exceptions, he was largely silent on the 27 percent of carbon emissions that come from the transportation sector.

Since 1970, the National Environmental Protection Act has required federal agencies to consider the impacts of their projects on air, water, and soil pollution -- but not on climate change.