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The air pollutant ozone has been linked to health problems including respiratory illness, reproductive problems and some cancers. Levels of ozone in the United States have come down over time but have started to rise again in places because of wildfires and soil emissions.

Over the past two decades, electricity from renewable sources, such as wind and solar, has been on the rise. Devices known as grid-forming inverters will likely play a major role in getting renewable energy safely into the power grid.

To really understand Earth, you need to travel thousands of kilometers beneath our feet. Starting at the center, Earth is composed of four distinct layers.

Drastic cuts to greenhouse emissions are needed to prevent even more catastrophic consequences than the rising sea levels, extreme weather and other impacts our warming world has already faced. Scientists have mapped out potential paths to net-zero, when greenhouse gases emitted are balanced by those removed. This includes decreases in emissions from transportation, industry and other sectors.

Strange ghostly blue lights have haunted the little town of Summerville, S.C. for decades. Reports of spectral balls of light floating along a desolate stretch of railroad inspired a ghostly local legend. Learn how legends can inspire real-world science. Then discuss similarities and differences between scientific theory and legend while answering questions about a proposed geologic explanation for this phenomenon.

Space rocks that have smashed into our planet have left impact craters. Many of the craters have been wiped away by erosion, but scientists have cataloged the survivors, including some that are over one billion years old.

Scientists just caught a rare glimpse of an exoplanet’s innards. Learn how scientists use wavelength data from the James Webb Space Telescope to figure out what exoplanets might be made of. Answer questions about the value of personification as a literary device, all the while discussing how knowledge gleaned from one discovery can help scientists answer new and lingering questions.

Across the planet, people throw away over two billion metric tons of waste every year. That waste feeds into environmental problems from climate change to pollution. So how can we reduce the amount of waste we produce? In this activity, students will categorize and record the waste they produce daily and reflect on the amount of “invisible” waste produced before they receive products. Students will then identify solutions for reducing each category of waste.

ooking for exciting and important applications of the phases of matter? Have students answer a set of questions relating changes in pressure to changes in states of matter. Learn about how hydrothermal explosions occur and the risk for these at Yellowstone National Park, all while discussing how geologists use core data to piece together geological history.

Global temperatures are at an all-time high due to the compounded effects of climate change and El Nino. Oceans around the world are warming at an alarming rate. In summer 2023, some 40 percent of the world’s oceans were affected by heat waves.

In August of 2018, scientists published research showing how air pollution shaves off about a year on average from human life expectancy. In more polluted regions of Asia and Africa, lives are shortened by 1.5–2 years on average. Loss in life expectancy rises with increasing concentrations of fine particulate air pollution (PM2.5).

Since temperature record-keeping began 150 years ago, the 12-month period from November 2022 through October 2023 was the hottest on record until temperatures in 2024 exceeded those in 2023. The heat raised sea surface temperatures, melted sea ice and endangered human health.