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Artificial light includes light from signs and streetlamps. These help people see once the sun goes down. But too much artificial light becomes light pollution. This makes it difficult to see a starry sky. And it affects animal behavior. …
About one in five people says climate change has a big impact on their daily life. This is according to a new study, released in March by Climate Central. The group looked at global temperatures between December 2024 and February…
An expanse of wildflowers is a stunning sight. But a wildflower meadow isn’t just nice to look at. It’s also doing important work. It promotes biodiversity. It produces food for pollinators, such as bees and butterflies. And it provides a…
On November 18, the more than 33 million residents of New Delhi, India, woke up to an ugly surprise. The city was covered in smog. It’s a kind of air pollution that creates a thick, toxic fog. In some parts…
Carlsbad Caverns National Park is a system of caves in New Mexico. Its ecosystem was threatened recently when a visitor dropped a bag of Cheetos there. Food and drink are prohibited in the caves. A spilled snack might seem harmless,…
People in the United States, the United Kingdom, Spain, and other countries were treated to a colorful display in the sky this weekend. These displays, called auroras, are typically seen only near the Earth’s north and south poles. Thanks to…
Charlotte Liebling considers herself a “world watcher”—someone who carefully observes the world around her. Here’s an example: When she was in college, Liebling volunteered at a store that sold secondhand goods. She observed people bringing in items to donate, including…
The Environmental Protection Agency (EPA) plans to update rules that would reduce lead in drinking water. The agency says it will require utility companies to replace old lead water pipes. The current rules are decades old. They have failed…
Thousands of protesters took to the streets of New York City on September 17. They had a message for President Joe Biden: It’s time for the United States to move away from oil and gas. “We hold the power of…
A drone display brightens the night sky outside the United Nations headquarters, in New York City, on September 15. It was set up by protesters trying to raise …
