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Lead can cause neurological damage to young children and developing fetuses. The only really safe level is zero. Because poor children are the most likely to be exposed to this hazard, this is also a major environmental justice issue. The Trump EPA took the position that it could set a hazard level higher than zero because of the cost of reaching a lower threshold. In a split decision, the Ninth Circuit reversed. The statutory issues are complicated, and a dissent raised some reasonable arguments. Ultimately, though, it's hard to believe Congress wanted EPA to misrepresent that a certain level of lead is safe for children when it really isn't.

In its closing days, the Trump administration issued a rule designed to tilt EPA's cost-benefit analysis of air pollution regulations in favor of industry. Recently, the agency rescinded the rule. The rescission was no surprise, given that the criticisms of the Trump rule by economists as well as environmentalists. EPA's explanation for the rescission was illuminating, however. It sheds some important light on how the agency views the role of cost-benefit analysis in its decisions.

Dirty, polluted stormwater that runs off of industrial sites when it rains is a major cause of pollution to Maryland’s streams and rivers, and ultimately to the Chesapeake Bay. Maryland is home to thousands of such industrial sites, all of which are required by law to obtain a stormwater discharge permit from the Maryland Department of the Environment (MDE) to prevent pollution and protect public and environmental health. Unfortunately, many of these sites do not have a permit. For example, our research in one small area of Anne Arundel County found that only four out of 12 industrial sites possessed a current permit. Of the industrial sites that hold a permit, many are not in compliance with the permit requirements. Between 2017 and 2020, MDE conducted just under 2,000 inspections of permitted sites throughout Maryland and found that more than two-thirds (68%) were violating the terms of their permits. These industrial sites are commonly clustered in urban areas, creating pollution hot spots of runoff that can include heavy metals and other toxins. Such polluted waters threaten the health of those who live nearby, who are more likely to be low income and populated by people of color.

Chlorpyrifos is one of the most widely used pesticides in America, although it has been banned in the European Union. Last week, the Ninth Circuit took the extraordinary step of ordering the U.S. Environmental Protection Agency (EPA) point-blank to ban or reduce traces of chlorpyrifos in food. A dissenter accused the majority of misreading the statute in question and abusing its discretion by limiting EPA's options so drastically and giving it only 60 days to act. Warning: The majority and dissenting opinions cover 116 pages, so I'll necessarily be leaving out a lot of details and nuances.

As Maryland heads into the final stretch of a collective effort to clean up the Chesapeake Bay, it has inexplicably passed over its best opportunity in years to modernize regulation of industrial stormwater -- rain and snow that collects toxic pollution as it runs off factories, warehouses, scrap metal dealers, and other industrial sites. Earlier this year, Maryland released a proposed revision of its general water pollution permit, which limits the type and amount of pollutants that facilities can discharge into public waters and sets monitoring and reporting requirements to protect public and environmental health. Unfortunately, the state missed an important opportunity to bring stormwater regulation from the last century into the present -- but it’s not too late to change course.

Since President Joe Biden assumed office, environmental justice has been at the front and center of his administration. One key initiative: developing better mapping tools to identify communities that may bear a disproportionate burden of toxic pollution and climate change impacts. Biden’s environmental justice (EJ) plan emphasizes the value of these tools and the need to improve them.

At midnight on April 13, Maryland’s 2021 legislative session closed out with the passage of House Bill 1069 that will provide meaningful drinking water protections for tenants who rely on well water.

To paraphrase French economist Thomas Piketty, the task of evaluating new regulations is too important to leave to just economists. Yet, since the 1980s, White House-supervised regulatory impact analysis has privileged economic efficiency as the primary and often only legitimate objective of federal regulation. The regulatory reform initiative launched by President Joseph R. Biden on his first day in office creates an opportunity to reorient regulatory analysis in ways that both reformers and the public support.

Women comprise nearly half of Biden’s Cabinet and they are making history as the largest group of women ever to serve on a presidential Cabinet. Here are some of their priorities while in office.