Up From Dust

All summer long, we run mowers over our lawns to keep them the perfect height – and run sprinklers to keep them emerald green. Add fertilizer and weedkillers into the mix, and it’s a real resource drain. But there’s something else about lawns: They’re inhospitable to most wildlife. Celia joins Marielle Segarra on NPR’s Life Kit to explain how to push back against American lawn culture by killing a small patch of grass and turning it into a wildlife friendly garden.

Climate change is altering the land we live on, and Indigenous communities are on the frontline. In this episode, we bring you to Alaska, where rapid permafrost thaw is threatening the Native village of Nunapitchuk. Then, we head to Louisiana, where the Pointe-Au-Chien Indian Tribe is watching their land disappear underwater due to sea level rise. These threats are forcing these tribes to make the difficult decision: to stay and adapt, or to leave their ancestral home. (This episode comes to us from the podcast Sea Change.)

Astronomers need your help! And you don’t have to be an expert, because it’s as easy as stepping outside your home and taking a good look at a constellation like Orion. For 20 years, the citizen science project Globe At Night has helped advance our understanding of light pollution – as scientists figure out how fast stars are disappearing from our sky.

In one long-polluted Ozark river, the little fish darting through the water and the rare mussels hiding on the pebbly bottom tell a story worth celebrating. They’re signs that the Spring River is benefitting from environmental cleanups after a century of mining pollution. A professor and his students are uncovering the evidence of recovery. But there’s a twist: They’ve also found a new environmental challenge unfolding farther upstream.

The Midwest has a reputation for vast fields of corn and soybeans that stretch to the horizon. But on some farms, strips of wildflowers and little bluestem now interrupt the crops, tiny glimpses of the prairie that once dominated the region. They’re an effort to hold back the fertilizer runoff that pollutes drinking water and then travels hundreds of miles downstream, where it fuels the Gulf of Mexico’s infamous Dead Zone.

Microplastics are everywhere. They’re in the air we breathe, the clothes we wear, even the food we eat. Scientists are still trying to understand what these tiny particles are doing to the environment and our bodies. But an accidental discovery at the University of Michigan in 2019 – involving baby diapers and rubber tires – has broken ground on an idea for how to get them out of our water. (This episode comes to us from the podcast Points North at Interlochen Public Radio.)

We have inadvertently filled our world with poorly designed outdoor lighting. The price? We’re losing our starry skies, hurting our health, killing pollinators, wasting billions of dollars and releasing millions of tons of avoidable carbon dioxide. Now people in a Missouri college town and a state park are proving that picking the right bulbs and fixtures can curb light pollution and its harms.

Symbiotic fungi are all the rage right now. Farmers want them in their fields, gardeners want them in veggie patches and flowerbeds. The excitement has given rise to a billion-dollar mycorrhizae market, but many products don’t deliver on their promises. Come visit the world’s biggest collection of these fungi to learn what makes them so great — and why you should think twice before buying them.

During times of drought, when the rains fail, man-made lakes come to the rescue of our cities and towns. Except the reservoirs we’ve come to depend on for drinking water are filling up with mud instead. The U.S. Army Corps of Engineers has an idea to tackle the problem, and they’ll try it for the first time ever — in Kansas.

Ancient waters that lie deep beneath the dry High Plains helped to turn western Kansas into an agricultural powerhouse. But the Ogallala Aquifer’s wells have begun to run dry after decades of tapping it for our corn, wheat and cows. In the rain shadow of the Rocky Mountains, we’ll learn how farmers are adjusting as the water disappears and hear how some are prodding state leaders to finally act.

It’s easy to advocate for saving pandas and elephants, but bugs are a harder sell. Look closer, though, and you’ll find tiny superheroes propping up entire ecosystems as pollinators, decomposers, predators and prey. We’ll wander the prairie with bison ranchers, in search of the dung beetles that work quiet miracles in huge piles of poop. And we’ll meet people overcoming their insect fears to help scientists catch and release bees, before they disappear.

Humans opened a Pandora’s box by moving plants, animals and fungi around the planet where they didn’t live before. Some of those species become so successful in their new surroundings that they crowd out others. Come along on a hunt for rogue Bradford pears, meet the teens turning cityscapes into butterfly havens and learn how to turn invasive plants into delicious food.