We're wrapping up our series on national parks with your experiences. Listeners from all corners of the country have texted, posted, and phoned in their favorite memories of national parks.

The current states of some national parks, despite our country's efforts to conserve them, are still threatened by climate changes. In the future, they may be radically different, especially the parks primarily composed of glaciers and snow.

This year's winner of the Google Science Fair is Brittany Wenger, a 17-year-old high school student from Florida. For her award-winning scientific project, Brittany used her knowledge of computer programming in order to help doctors diagnose breast cancer.

Everyone has their own story to share when they come back from a National Park. When collected together, these stories create a history and a culture. Documentarian Ken Burns joins us to discuss his journey to capture the spirit and tales of the National Parks.

Few Americans have ever heard of Rodriguez, a protest rock musician who, after making two albums in the early '70s, quit the music business. Rodriguez returned to his native Detroit and began working in construction. His music played on for decades, just not in the United States.

Americans owe more than $1 trillion in student debt, and without the proper financial knowledge this debt will only increase over time. In order to find a solution to this problem, we must start at the source: high school students.

Many places across the world are experiencing unusual weather, from never-ending rains in Britain to extreme flooding in Japan. Are all these weather oddities a coincidence, or could they all be related?

The Fourth of July sparks patriotism for many Americans, and in honor of today's holiday, what could be more patriotic than America's National Parks? Audrey Peterman is the author of "Legacy on the Land" and is a recognized National Park enthusiast.

President Teddy Roosevelt, prior to his political life, briefly led the life of a rancher. The land left a lasting impression on him, which eventually influenced his conservationist policies. Because of his efforts, national parks have become a part of the United States' identity. Today the great-grandson of President Roosevelt discusses his quest to preserve the Elkhorn Ranch, where Teddy Roosevelt had lived as a rancher.

There are many stereotypes associated with the sciences, including the ideas that scientific fields are out-of-reach, too intellectual, or exclusively for men and academia. The outgoing president of M.I.T. discusses these problems and says that the United States must create a culture of the sciences in order to generate interest in the masses.

Forty years ago today, Congress passed Title IX. The landmark civil rights law barred gender discrimination in the country’s schools and colleges, but it is perhaps best known for its impact on female participation on women’s high school and college sports.