January 19, 2019, 7am PST
Sen. Scott Wiener introduced legislation to make state highways that run through villages, town, and cities, often acting as main streets, accommodate the safety needs of walkers, cyclists, and transit users when undergoing capital improvements.
January 3, 2019, 2pm PST
The Environmental Protection Agency proposed a critical change in the cost-benefit analysis used in the mercury rule that applies to coal-fired power plants. By eliminating the principle of co-benefits, public health impacts would be severe.
December 30, 2018, 1pm PST
Machine learning has opened a new frontier in urban forest management.
December 16, 2018, 9am PST
A new report by Victoria Walks, an advocacy organization in Australia, quantifies the benefits of choosing to walk. The report also benefits the multiplier of the choice to invest in pedestrian infrastructure.
December 10, 2018, 7am PST
The U.S. Department of Housing and Urban Development is desperately in need of reform in its system of inspections and enforcement of living conditions in public housing.
December 1, 2018, 1pm PST
Drug overdoses and suicides caused American life expectancy to drop in 2017 for the second consecutive year, according to the Centers for Disease Control and Prevention. Most notable is the gap between the urban and rural suicide rate.
November 21, 2018, 8am PST
Less dense communities provide specific challenges in providing services to residents in need of extra care. More seniors living in suburban and rural communities will require new and scalable solutions.
October 14, 2018, 11am PDT
President Trump announced at a campaign rally in Iowa that he would lift the ban on summertime sales of a 15 percent blend of ethanol, expected to increase smog levels. Both environmentalists and the oil industry oppose the action.
September 28, 2018, 2pm PDT
Recent electric scooter news is defined by tragedy.
September 10, 2018, 8am PDT
A feature article at the major local daily newspaper in Houston tackles traffic safety and puts the onus on engineers, police, and politicians to come to terms with the destruction they've wrought.
September 9, 2018, 5am PDT
The EPA intends to review the rulemaking process behind the mercury rule, the subject of a landmark Supreme Court ruling in 2015, to place more value on a rule's compliance cost to industry and less to its beneficial impact on human health.
September 6, 2018, 11am PDT
Unlike prior initiatives that sought drilling bans, Prop. 112 would greatly increase setbacks from buildings to such an extent that it could doom much of the industry. A competing initiative would make the change a "taking" and require compensation.
September 3, 2018, 11am PDT
Extreme heat, rising seas, and other impacts of climate change are turning deadly faster than predicted, California officials warn.
August 28, 2018, 12pm PDT
A 2016 rule approved by a specialized agency of the U.N. is forcing large ships that burn bunker oil, the dirtiest type of fuel, to either burn a more costly low-sulfur variety, apply scrubbers, or turn to LNG.
August 27, 2018, 6am PDT
At the center of the EPA's newly proposed Affordable Clean Energy rule is doing away with a permitting process known as New Source Review that requires coal power plants to add scrubbers and other expensive pollution control equipment when upgraded.
August 23, 2018, 6am PDT
The Guardian sounds the alarm about deadly heat exposure in poor communities around the world.
August 22, 2018, 5am PDT
On Tuesday, EPA released its new rule to regulate emissions from existing power plants, essentially leaving it to the states to determine appropriate emissions levels rather than setting actual standards each state has to meet like the current rule.
August 14, 2018, 6am PDT
The ruling puts another stain on former EPA Administrator Scott Pruitt's legacy as it rebukes his denial of a petition to ban a pesticide that causes neurodevelopmental damage in children. Pruitt had rejected his own scientists' recommendation.
July 16, 2018, 11am PDT
Umair Irfan provides a post-mortem, of sorts, on the tenure of Scott Pruitt at the U.S. Environmental Protection Agency.
July 15, 2018, 9am PDT
A new study builds an even stronger case for setting pollution controls at PM 2.5 to prevent increased risk of diabetes. The EPA's clean air regulations set a threshold much less restrictive than that level.