Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Summarize this excerpt from an NPR article: 

NEW YORK — Saying she is ready to share the "unfathomable" experience of being arrested and incarcerated in Russia, basketball star Brittney Griner is working on a memoir that is scheduled for spring 2024.

Griner was arrested last year at the airport in Moscow on drug-related charges and detained for nearly 10 months, much of that time in prison. Her plight unfolded at the same time Russia invaded Ukraine and further heightened tensions between Russia and the U.S., ending only after she was freed in exchange for the notorious Russian arms dealer Viktor Bout.

A WNBA All-Star with the Phoenix Mercury, Griner had flown to Moscow in February 2022 to rejoin UMMC Ekaterinburg, a Russian women's team she has played for in the off-season since 2014.

"That day (in February) was the beginning of an unfathomable period in my life which only now am I ready to share," Griner said in a statement released Tuesday by Alfred A. Knopf.

"The primary reason I traveled back to Russia for work that day was because I wanted to make my wife, family, and teammates proud. After an incredibly challenging 10 months in detainment, I am grateful to have been rescued and to be home. Readers will hear my story and understand why I'm so thankful for the outpouring of support from people across the world."

Griner says she hopes her book raises awareness for other detainees
Griner added that she also hoped her book would raise awareness of other Americans detained overseas, including Wall Street Journal reporter Evan Gershkovich, arrested in Russia last month and accused of espionage; businessman Kai Li, serving a 10-year sentence in China on charges of revealing state secrets to the FBI; and Paul Whelan, a corporate security executive imprisoned in Russia on spying charges. Around the time Griner was released, Whelan criticized the U.S. government for not doing enough to help him.
Response: Brittney Griner, a WNBA All-Star basketball player with Phoenix Mercury, spent ten months detained in Russia last year after she was arrested in Moscow on drug-related charges when going to rejoin a Russian basketball team. Her detainment occurred around the time Russia invaded Ukraine. She was released when Viktor Bout, a Russian arms dealer, was exchanged for her. 

Brittney Griner is working on a memoir that is scheduled to release in 2024. She hopes this book tells her story, shows how she appreciates the support she's received from people worldwide, and brings awareness to others detained in foreign countries. Current detainees include Evan Gershkovich, Kai Li, and Paul Whelan. 

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.

Summarize this paragraph about climate change effects on polar bears:

Polar bears are increasingly struggling to find food as their Arctic ice habitat melts due to rising global temperatures. These apex predators rely heavily on sea ice to hunt seals, their primary food source. However, the rapid retreat of ice forces bears to swim longer distances to find food, exhausting them and leading to decreased survival rates. Furthermore, the loss of ice platforms means they are sometimes forced inland, where food is scarce, worsening their plight.
user
Rising global temperatures are melting Arctic ice, making it difficult for polar bears to hunt seals. This has led them to swim longer distances, exhausting themselves and reducing survival rates. Some bears are forced inland where food is scarce, further endangering them.
assistant