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: Shorten this product description to one sentence or two. 

The Twist it Up Comb is the best Twist Comb in the world! It’s innovative, ground-breaking, and a high quality styling tool for Urban hair. It is the BEST & ONLY clean way to twist afrocentric hair. In the center of each comb you will find a stainless steel woven pattern that is easy to clean & the patent woven design protects your hair from being pulled. As you rotate the comb to follow your curl pattern, your hair passes through the holes in the center of the comb as it gently coils/twist your hair from the roots up. Since it does not absorb the hair products in your hair robbing it from its natural nutrients, our comb enures to not only twist your hair, but leave it hydrated and healthy. The stainless steel is an essential part of our combs. It is easy to clean, very durable and won’t bend under pressure when trying to coil/twist longer hair. Ensuring that you won’t have to replace our comb as much as you do our competitors, which saves you hundreds of dollars in the long run. This unique patented technique and design can only be found on authentic Twist it Up Styling Combs. WE ARE THE FIRST, THE ONLY, AND CANNOT BE COPIED!
Response: The Twist it Up Comb is an innovative and high-quality tool that is easy to clean and won't pull your hair. It also keeps your hair healthy and is very durable, saving you money. 

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.

Describe the main causes and effects of global warming in a few sentences.
user
Global warming is primarily caused by the increase in greenhouse gases from human activities like burning fossil fuels and deforestation. It leads to rising temperatures, melting ice caps, and extreme weather patterns.
assistant