Experts call for overhaul of pesticide regulations

A trio of researchers from Aarhus University, Agroscope, Wädenswil and Vetagro Sup, France, Marcy l’étoile has published a Policy Forum piece in the journal Science calling for an overhaul of the regulatory frameworks that define the ways that pesticides can be used. Christopher Topping, Annette Aldrich and Philippe Berny suggest that the current system is outdated and needs to be changed because the current system is allowing more environmental damage than need be.

Between wildfires, land in the US West has short 10- to 15-year reprieve

In the wake of a devastating wildfire, burnt land has a respite before the next blaze. But until now, no one has known just how long that effect lasted across the US West. Researchers from the University of Colorado Denver and Portland State looked into the increasing rates and intensity of fires in the U.S. West, like Colorado’s Hayman Fire and California’s Camp Fire, are up tenfold over the last 40 years. They wanted to know, once the shrubs, trees and other woody fuels have burned up, how long before the next one?

Climate (not humans) shaped early forests of New England

A new study in the journal Nature Sustainability overturns long-held interpretations of the role humans played in shaping the American landscape before European colonization. The findings give new insight into the rationale and approaches for managing some of the most biodiverse landscapes in the eastern U.S.

Ozone-depleting substances caused half of late 20th-century Arctic warming, says study

A scientific paper published in 1985 was the first to report a burgeoning hole in Earth’s stratospheric ozone over Antarctica. Scientists determined the cause to be ozone-depleting substances—long-lived artificial halogen compounds. Although the ozone-destroying effects of these substances are now widely understood, there has been little research into their broader climate impacts.

Study weighs deep-sea mining’s impact on microbes

The essential roles that microbes play in deep-sea ecosystems are at risk from the potential environmental impacts of mining, a new paper in Limnology and Oceanography reports. The study reviews what is known about microbes in these environments and assesses how mining could impact their important environmental roles.