Topic: Climate Change

Warming earth

Current Event March 11, 2020

The Warming Earth

Environment Climate Change Weather and Climate Human Impacts

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.

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Aussie wildfires

Current Event January 14, 2020

Wildfires in Australia

Environment Climate Change Weather and Climate

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.

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Logging3

Current Event January 10, 2020

Debate: Should Wood Be Considered Renewable Energy?

Environment Climate Change International

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?

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Food waste plate

Current Event January 7, 2020

Generating Electricity from Food Waste

Climate Change Biotechnology Electricity

Extra food thrown into landfills produces harmful methane gas as it rots, contributing to global warming. Farmers in Massachusetts are combating the problem by converting gas from food waste into something useful: electricity. The results have helped to power thousands of homes. Listen to hear a farmer describe how he makes electricity from discarded food and why he calls the process a “home run.”

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Venice flood

Current Event November 25, 2019

Rescuing Venice from the Floods

Climate Change International European History

The worst flood in 50 years has hit the historic Italian city of Venice. The 6-foot high floodwaters damaged buildings, art, books, and other precious objects, and volunteers are streaming into the city to help. Listen to hear volunteers explain why they flocked to Venice after the flood and learn what is involved in saving the city’s valuable treasures.

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River3

Current Event November 1, 2019

Debate: Should a River Be Granted Personhood?

Culture Climate Change Law Conservation

A Native American tribe in California took an unusual step to protect a river central to its way of life – it gave the river the same rights as a person. The move allows the tribe to take legal action against anyone who harms the river. Listen to hear a tribal member explain the special role of the river in tribal life and why the group decided to take such bold action.

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Ocean2

Current Event October 21, 2019

Ocean Warming Is Accelerating

Culture Environment Climate Change Weather and Climate Human Impacts Oceans

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.

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Current Event October 16, 2019

Trees Can Help Beat City Heat

Health Environment Climate Change Class

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.

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Current Event October 1, 2019

Climate Change Strike

Politics Environment Climate Change Protest Human Impacts Reform

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.

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Alaskafire

Current Event September 23, 2019

Fires Burning in the Cold Arctic

Environment Climate Change Human Impacts

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.

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Current Event September 9, 2019

Amazon Rainforest Fires

Politics Environment Climate Change Conservation

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.

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Kera garlic

Current Event July 17, 2019

Changing Consumers' Minds About "Ugly" Produce

Environment Climate Change KERA Human Impacts Agriculture Nutrition Industry Plants Conservation Business

Would you eat a scarred, lumpy carrot or an apple that is oddly shaped? Grocery stores do not typically sell these types of “ugly” produce, but some new companies aim to reduce food waste by selling fruits and vegetables that are rejected by stores. Listen to learn about the benefits of these efforts and find out what else you can do to reduce food waste.

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Red sun sadness

Current Event June 24, 2019

Life and Death Across the Geologic Ages

Environment Climate Change Human Impacts

About 250 million years ago, there was a widespread extinction on earth. Scientific investigations into the climate conditions leading to this prehistoric “Great Dying” can shed light on how climate change in the modern world might impact life on the planet. The “Deep Time” exhibit at the Smithsonian National Museum of Natural History explores the state of the earth and its inhabitants in that era. Listen to hear about how the “Great Dying” happened and why it is relevant today.

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Youth fight for climate change

Current Event June 12, 2019

Students Protest Climate Change

Politics Economics Education Environment Climate Change Protest Human Impacts Trade Industry Branches of Government Conservation

Students around the world have been skipping school to protest their governments’ lack of action on climate change. Now, this movement has come to the United States. American students are gathering together to demand that Congress take action to protect them from the effects of climate change. Listen to find out more about what students are asking of their government leaders and why.

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House burning test

Current Event May 22, 2019

Burning Down a House to Test Fire Safety

Technology Environment Climate Change Weather and Climate Business Earth Systems

A new natural disaster lab uses extreme methods to test which building materials are safest to withstand major storms and wildfires. Listen to find out why insurance companies want to invest millions of dollars in this lab and why climate change makes the lab’s experiments more important than ever before.

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Close up flakes

Current Event January 29, 2019

Catching Snowflakes for Science

Climate Change Weather and Climate Elementary Human Impacts

Scientists from the Desert Research Institute in California are recruiting some very young researchers to help them better understand snow storms. The researchers have opened up data collection to citizen scientists, as they will need many snowflake pictures to answer their questions. The 4th and 5th grade students participating in the “Stories in the Snow” project are learning how to take very detailed pictures of snowflakes. Listen to this story to hear more about what the scientists hope to learn from their snow research, what students are learning from participating, and who will benefit.

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Cali drought

Current Event December 5, 2018

Urgent Climate Change Warning

Earth and Space Science Environment Climate Change Weather and Climate Human Impacts

A new government report on climate change warns of the rapidly increasing negative effects of climate change and offers recommendations to help slow down its adverse impact. The report explains that not only are humans responsible for climate change, but our ongoing actions are making it worse. Listen to this interview with a climate change expert to hear about the urgency of this warning and what makes her hopeful.

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The globe

Current Event October 24, 2018

UN Report Warns about Climate Change

Environment Climate Change Weather and Climate Human Impacts

A recent report by a United Nations panel indicates that if we do not take action immediately to lessen the impact of global climate change, the negative consequences will be severe. A professor who worked on the report explains that global warming is already influencing our lives and the ecosystems that surround us. Listen to hear more about the rapid pace of climate change and what we can do to decrease the potential for disaster associated with it.

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Current Event February 7, 2018

Melting Permafrost Exposes Carbon

Climate Change Weather and Climate

Permafrost is frozen soil that has preserved things such as ancient animal bones and centuries-old icebergs. Permafrost contains twice as much carbon as is currently in Earth's atmosphere and it also preserves old bacteria. When it's defrosted the bacteria eats dead plants and animals turning their carbon into gases such as carbon dioxide. As the permafrost warms, the microbes are releasing gases contributing to further warming. Listen to learn more about this warming cycle.

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Current Event December 20, 2017

California Fires are New Normal

Climate Change Weather and Climate

The Santa Ana winds are making it extremely difficult for firefighters to control the range of the wildfires in Southern California. The fires have burned more than 272,000 acres and destroyed more than 1,000 homes. These wildfires have caused many scientists to revisit the discussions over climate change as the United State’s western coast has continuously been battling floods, earthquakes, and wildfires throughout the entire year. Listen to hear what these fires indicate for future weather patterns.

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