Alejandra Borunda
Stories
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Environment
More than 200 million seniors face extreme heat risks in coming decades, study finds
A new study warns that millions of people around the world who are 69 years or older will be at risk of dying in heat waves by 2050.
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Environment
How hot is too hot? New weather forecasting tool can help figure that out
Released on Earth Day, the federal government's new "HeatRisk" tool can help people assess when heat goes from uncomfortable to dangerous.
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Environment
Wildfire smoke contributes to thousands of deaths each year in the U.S.
Two new studies show the unseen toll smoke is taking on people across the country. Climate change is likely to make the problem even bigger.
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National
Florida blocks heat protections for workers right before summer
Miami-Dade County had proposed rules that would give workers breaks, water, and shade when it's too hot. But a new state law prevents cities and counties from doing that.
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Environment
California wants to protect indoor workers from heat. That goal is now in limbo
The state was on the cusp of making new rules to protect people who work in places like warehouses from dangerous heat. A last-minute shake-up leaves workers wondering if they'll be safe come summer.
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Science
The human cost of climate-related disasters is acutely undercounted, new study says
A new study counts the human health costs from increasingly costly and dangerous extreme weather in the U.S.
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Environment
EPA tightens rules on some air pollution for the first time in over a decade
The new regulations could save thousands of lives from deadly air pollution, according to the U.S. Environmental Protection Agency's calculations.
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Environment
How are atmospheric rivers affected by climate change?
California is in the grips of an atmospheric river that's causing flooding all over the state. Climate change might be intensifying storms like it — but scientists are still working out the details.
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Health
Wildfire smoke this year woke up places unaccustomed to its effects. Now what?
Wildfires worsened by climate change spewed smoke over much of North America this year. It's a new reality Americans haven't yet processed: how dangerous the smoke is for human health.
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Health
A fan died of heat at a Taylor Swift concert. It's a rising risk with climate change
The concert in Rio de Janeiro took place during one of the worst heat waves ever in Brazil. The country is in the middle of a record-breaking six months of extreme weather.