High altitudes may be a climate refuge for some birds, but not these hummingbirds

Cooler, higher locales may not be very welcoming to some hummingbirds trying to escape rising temperatures and other effects of climate change. Anna’s hummingbirds live no higher than about 2,600…

Materials of the last century shaped modern life, but at a price

A 1920s science headline, “Ice cream from crude oil,” may best capture the era’s unbridled enthusiasm for chemistry. “Edible fats, the same as those in vegetable and animal foods ……

Wildfire smoke may ramp up toxic ozone production in cities

Wildfire smoke and urban air pollution bring out the worst in each other. As wildfires rage, they transform their burned fuel into a complex chemical cocktail of smoke. Many of…

Oat and soy milks are planet friendly, but not as nutritious as cow milk

If you’ve got milk, you’ve got options. You can lighten your coffee or soak a cookie, ferment a cheese or bestow yourself a mustache. You can float some cereal or…

How much does eating meat affect nations’ greenhouse gas emissions?

The food we eat is responsible for an astounding one-third of global greenhouse gas emissions caused by human activities, according to two comprehensive studies published in 2021. “When people talk…

Farmers in India cut their carbon footprint with trees and solar power

In 2007, 22-year-old P. Ramesh’s groundnut farm was losing money. As was the norm in most of India (and still is), Ramesh was using a cocktail of pesticides and fertilizers…

These six foods may become more popular as the planet warms

No matter how you slice it, climate change will alter what we eat in the future. Today, just 13 crops provide 80 percent of people’s energy intake worldwide, and about…

Replacing some meat with microbial protein could help fight climate change

“Fungi Fridays” could save a lot of trees — and take a bite out of greenhouse gas emissions. Eating one-fifth less red meat and instead munching on microbial proteins derived…

How some sunscreens damage coral reefs

One common chemical in sunscreen can have devastating effects on coral reefs. Now, scientists know why. Sea anemones, which are closely related to corals, and mushroom coral can turn oxybenzone…

How much does eating meat affect nations’ greenhouse gas emissions?

The food we eat is responsible for an astounding one-third of global greenhouse gas emissions caused by human activities, according to two comprehensive studies published in 2021. “When people talk…