Search

The earth is getting warmer. Records kept for the past century show a steady increase in temperature each decade, and 2019 was the second hottest year ever. As humans send carbon dioxide into the air from cars, factories, and other sources, the trapped heat warms the planet, causing glacial ice to melt, oceans to rise, and big weather events like floods and droughts to increase in intensity. Listen to learn more about changes to the earth caused by global warming and what to expect in the future.

Wildfires are raging in Australia, threatening human and animal life. As the climate warms and rainfall and humidity decrease, large parts of the land have become dry and brittle – ideal conditions for fires to start suddenly and spread quickly. Listen to hear how intense heat and smoke are affecting daily life and what residents are doing to stay cool when temperatures reach 120 degrees Fahrenheit.

Renewable resources are said to provide “clean” energy that does not harm the planet. Some say wood is renewable, arguing that trees can be replanted, and that the carbon dioxide released by burning wood is eventually reabsorbed by the new trees, making them “carbon neutral.” Others dispute the math used to calculate carbon neutrality since it takes so many years to regrow a forest. Listen to hear why the U.S. is sending millions of tons of wood pellets to Europe for burning and then debate: Should wood be considered renewable energy?

A Chinese insect has invaded Pennsylvania. It likely traveled on shipping containers across the Pacific ocean and when it arrived, it found bountiful food and no real predators. Now, the spotted lanternfly populations are getting out of control. With both ecosystems and businesses suffering, experts are considering drastic actions to reduce this invasive insect’s spread. Listen to learn more about the spotted lanternfly and scientists’ “crazy” solution to this bug’s growing numbers.

Wildfires are raging across California, forcing thousands of people to flee their homes and prompting neighboring states to send supplies to help fight the blazes. Adding to the confusion, some areas have gone dark as California’s biggest electric company has shut off service. The company claims blackouts are necessary to contain the fires, but California’s governor blames the company for creating the problems that led to an unsafe electric grid. Listen to hear the governor of California describe how Californians can stay safe and why he feels such urgency about the electric company fixing the power grid.

According to a new report, bird populations are generally decreasing throughout North America. Having fewer birds could negatively impact our ecosystems and our lives. However, there are steps we can take to help our feathered friends bounce back. Listen to learn what factors are causing bird populations to decline and some simple steps people can take to help slow the trend.

Landscape architect Walter Hood is famous for transforming worn out urban spaces into beautiful and useful places. The winner of a MacArthur Fellowship, also known as a “genius grant,” Hood researches the history of a neighborhood, talks to residents, and then incorporates their ideas into his designs. Listen to learn how Hood’s childhood memories influence his work and how he integrated a slave ship drawing into a museum design project.

The boardwalk in Ocean City, New Jersey, was plagued by food-stealing seagulls. They would dive down and snatch French fries, pizza, and even ice-cream right out of people’s hands. The city devised a creative solution to remedy this situation–more birds! Listen to learn how bringing in bigger birds made the boardwalk a friendlier place.

A recently released United Nations report looks at changes in the world’s oceans caused by a warming climate. The report found that oceans are rising at a faster rate than ever before and becoming more acidic, threatening human and fish populations. Communities that depend on the sea for their food and way of life are especially vulnerable. Listen to learn more about the challenges humans will face as sea levels continue to rise.

Low-income urban neighborhoods are often hotter than wealthier neighborhoods in the same city. This is problematic, especially during heat waves, when residents’ health and even their lives could be at risk. One of the reasons poorer areas get hotter is because they tend to have fewer trees. Listen to learn how trees keep communities cool and why they are more prevalent in some neighborhoods than others.

Have you ever wondered what chirping birds might be saying to each other? Squirrels seem to understand communications between their feathered neighbors, and they use this information to help them stay alive. Recently, scientists decided to see just how much information “eavesdropping” squirrels gather from birds. Listen to discover what they learned and how these animals’ networks operate “almost like Facebook.”

Frustrated by the slow pace of progress on addressing climate change, millions of young people around the world recently skipped school and took to the streets in protest. The strike came days before the U.N. Climate Action Summit, and protesters of all ages joined the students with signs demanding that their governments take urgent action. Listen to hear more about these worldwide strikes and what the marchers hoped to accomplish.

Recent weather has led to an increase in snake populations across the United States. Given this trend, it is important to understand how to avoid being bitten by these animals and what to do if the worst case scenario does occur. Listen to hear insights from a biologist and an emergency room doctor about how to avoid snake bites and how to handle them if necessary.

The Arctic may seem like an unlikely place for fires, but every year wildfires burn millions of acres of forest in Alaska, northern Canada, and Siberia. This century, the blazes have grown bigger, hotter, and more frequent, causing health problems for local residents and releasing harmful greenhouse gases into the environment. Listen to hear a climate scientist describe the effects of wildfires in the Arctic and how the global community can respond.

In Newark, New Jersey, and other places like Flint, Michigan, the water that comes out of the tap is no longer safe to drink. Lead that was used to prevent old pipes from rusting has now contaminated it. Listen to hear more about how this water crisis is affecting people’s daily lives and how New Jersey Senator Cory Booker is trying to change the law and use state funds to replace Newark’s old water pipes.

When a vacant lot in Sacramento was up for sale, one neighbor had an idea for what it could become. She envisioned an urban farm, so she bought the lot and invited a local nonprofit group to help turn it into an “edible art garden” after gathering input from other community members. Listen to learn what this once bare lot looks like today and how it benefits the neighborhood surrounding it.

Southern California recently experienced several large earthquakes. Fortunately, the damage caused by these events was minimal, and mostly confined to the desert, where fewer people live and work. However, some experts are concerned about what might happen if a severe earthquake occurred in urban Los Angeles, for example, where the potential damage to infrastructure could cause major problems. Listen to learn how Californians should prepare for a future major earthquake.

Fires are raging in the Amazon rainforest at an unusually high rate. The flames are destroying hundreds of acres of forest, killing wildlife, and spreading smoke across thousands of miles. Scientists are concerned that, since trees take in carbon dioxide from the air, the loss of so much forest could speed up climate change. Some environmentalists argue that this is a man-made disaster, caused by intentional deforestation. Listen to learn more about the enormous scale of the fires burning in the Amazon rainforest and the ongoing debate about who is responsible.

As India produces more and more garbage, giant mountains of trash are growing around its cities. The mountain of waste in New Delhi is nearly as tall as the world famous Taj Mahal. This creates an awful smell and a variety of safety issues, but some poorer Indians have also used it as an opportunity to create their own waste-based businesses. Listen to learn more about how these entrepreneurs turn trash into treasure and the risks they take in mining these man-made garbage mountains.