July 29, 2019, 9am PDT
Next month, the Trump administration rolls out one of their most significant environmental rollbacks, freezing auto emission and fuel efficiency standards at 2020 levels. The deal unveiled by Gov. Gavin Newsom on Thursday may upend Trump's plans.
June 21, 2019, 8am PDT
It took less than a year for the EPA to finalize the Affordable Clean Energy rule, which will allow older coal-burning plants to continue operating, in the Trump administration's most consequential environmental rollback accomplished to date.
June 14, 2019, 12pm PDT
President Trump made good on his promise last October to lift the E15 ban in time for the summer driving season. Not mentioned by the Des Moines Register are the downsides to allowing the higher ethanol blend to be sold during the summer, e.g., smog.
April 23, 2019, 7am PDT
Once again, the president's efforts to undo his predecessor's environmental legacy were thwarted by a court ruling. In this case, the Interior Department's failure to conduct an environmental review of a Trump executive order ran afoul of NEPA.
April 5, 2019, 7am PDT
Big Oil companies are not all alike. Royal Dutch Shell is the first one to part ways with a major oil industry trade group over differences on climate change. It's also linking executive pay to goals to reduce the company's carbon footprint.
March 10, 2019, 9am PDT
The auto industry appears to be balking at supporting the Trump administration's plan to freeze vehicle emission standards at 2020 levels even though they initially asked Trump to loosen the rigorous Obama-era fuel efficiency rule that goes to 2026.
February 25, 2019, 11am PST
Ending the talks means litigation will have to settle the conflict over the two standards: California and 12 other states continue to use the Obama-era standard of 36 mpg by 2025, while the administration's rule freezes standards at 2020, or 29 mpg.
January 10, 2019, 8am PST
The sobering news comes from the Rhodium Group, a research firm that tracks CO2 emissions. The preliminary estimate is the third in two months to show an increase in 2018, attributing it to an improved economy and Trump's regulation rollbacks.
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 17, 2018, 7am PST
Conventional thinking is that the auto industry, wanting to sell more fuel-gulping SUVs, are pushing for weaker fuel economy standards, but Hiroko Tabuchi, climate reporter for The New York Times, exposes Big Oil's stealth campaign.
December 14, 2018, 10am PST
Fulfilling a promise he made as a candidate, the Trump administration proposed a redefinition of what is classified as a wetland, with the result being the loss of federal protection of millions of acres of waterways and wetlands.
December 7, 2018, 12pm PST
The report from the Global Carbon Project, an international group of scientists who track greenhouse gas emissions, comes as a surprise as emissions had been relatively flat for the last four years. Global emissions this year will increase 2.7%.
November 15, 2018, 10am PST
The Trump administration's denial of climate change may serve a political purpose, but in the courtroom, it can prove a liability. A federal judge in Montana took into account the administration's "discarding" of climate science in its ruling.
October 26, 2018, 12pm PDT
A 'misconduct investigation' decided that an industry-funded study, used by the EPA as the basis to roll back a regulation limiting the number of old engines that could be used in new truck chassis (i.e., "glider trucks"), was inaccurate.
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 13, 2018, 11am PDT
One Obama-era climate regulation still on the books deals with methane leakage from oil and gas wells. The greenhouse gas is 25 times more powerful than carbon dioxide. Another methane regulation targeted deals with flaring on federal lands.
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.
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 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 7, 2018, 2pm PDT
State attorneys general and green groups are gearing up to fight the emissions rule rollback. Mayors would have a greater climate impact by helping their constituents drive less, argues Alissa Walker.