With summer heat comes pool parties, beach days, backyard cookouts, and, of course, swarms of bloodthirsty mosquitoes.

But while insect bites have always been a side effect of time spent outdoors, the species doing the biting are changing in historically temperate regions like New England. As climate change makes these areas warmer and wetter, their ranges are expanding—and any diseases they carry come with them.

In Connecticut, for example, a statewide mosquito monitoring program has detected 54 different species, including invasives like the Asian tiger mosquito, which can transmit potentially serious diseases including dengue and Zika. The mosquito’s historical territory is in hot and humid climates farther south, but it has been moving north.

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A ballot measure written by a conservative nonprofit could amend the Colorado Constitution to enshrine fossil fuel companies’ right to sell methane gas and possibly force communities that have tried to eliminate gas appliances from new construction to back away from those efforts.

Advance Colorado, which wrote the measure and led the effort to gather enough signatures to add the measure to the ballot, submitted its petition on June 25 to put Initiative 177, the “Right to Natural Gas,” to voters in November’s state election.

The broad language of the measure—only 60 words in total—makes it difficult to predict how state agencies would implement it if it passes, and many people worry the amendment would endanger Colorado’s ability to reach its climate goals.

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Physicist Ronald Koopman appeared at a Southern California Air District meeting in 2018 to talk about what seemed like an arcane scientific topic: hydrofluoric acid dispersion and water mitigation testing.

Hydrofluoric acid, also known as hydrogen fluoride or HF, is used to manufacture a range of materials, including refrigerants, gasoline, fluorine-based pesticides and fluoropolymers like those used to make Teflon. It’s also one of the most corrosive and dangerous chemicals known. Koopman conducted experiments with the chemical in the 1980s that warned about the potential of deadly accidents at facilities that use the hazardous materials.

With the Trump administration poised to roll back rules intended to protect workers and communities from catastrophic industrial chemical releases, and a new analysis showing rising rates of chemical accidents, Koopman’s presentation on highly hazardous materials has taken on a new urgency.

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A new state law limits Florida communities’ aims to offset greenhouse gas emissions that are warming the global climate and intensifying disasters such as hurricanes.

Specifically, HB 1217 prohibits local governments from pursuing net-zero emissions goals. At least 10 cities and counties have implemented such policies, including Fort Lauderdale, Miami, Orlando, and Leon County, where Tallahassee, the state capital, is located. But the new law will not necessarily upend these policies, said Bradley Marshall, senior attorney at Earthjustice, an advocacy group.

“It’s certainly meant to scare municipalities and local governments from trying to do things to further net-zero policies,” he said. “Now, its exact impact and what it exactly prohibits is probably up for some debate. Things that are adjacent to it—emissions reductions and even climate change reduction policies—on their face will not run afoul at all of a ban on adopting a net zero policy.” 

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