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Annual global production of silicone—a synthetic polymer with a long chain of silicon and oxygen atoms—exceeds 2.6 million metric tons (1). Its manufacturing is anchored in energy-intensive processes. More than 70%
The harm to human health caused by spraying Agent Orange and other herbicides over southern Vietnam was unintended—but not the damage to the environment. The U.S. military’s effort to denude an
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eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article.
Neuroscience You see what you expectPeter SternFeedback from higher-level visual processing centers in the brain influences the early stages of object recognition.PHOTO: EYEEM MOBILE GMBH/ISTOCK PHOTOVisual recognition is thought to start
Peaceful protesters stand up for science at the Lincoln Memorial in Washington, DC on 7 March 2025.PHOTO: KENT NISHIMURA/REUTERSI was sitting with my son on a step leading up to the
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eLetters is a forum for ongoing peer review. eLetters are not edited, proofread, or indexed, but they are screened. eLetters should provide substantive and scholarly commentary on the article.
Generations of high school students have learned how the 19th century Austro-Hungarian friar Gregor Mendel discovered basic principles of genetics by studying peas, which he planted by the thousands in the
The National Science Foundation (NSF) has spent billions of dollars over several decades trying to attract more women and members of underrepresented groups into science, technology, engineering, and math (STEM). But
Climate change is expected to cause irreversible changes to biodiversity, but predicting those risks remains uncertain. I synthesized 485 studies and more than 5 million projections to produce a quantitative global