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 in 30-50 words. 

Why should learning be collaborative?
Collaborative learning is a method of active learning that relies on the principle of two or more students working together, towards a common goal. These activities vary widely, but most centre on the learner’s exploration or application of the curriculum, not simply on the teacher’s point of view.

Collaborative learning arms pupils with the confidence to teach and learn from their peers and teachers, too. In primary schools especially, collaborative learning will help develop soft skills at an earlier age, helping children become more effective communicators.

The differences between collaborative learning and cooperative learning can be interchangeable for educators, however, collaborative learning encourages students to make individual progress in tandem with others. Co-operative learning, meanwhile, promotes accountability with interdependence. Find out more about the benefits of collaborative learning.
Response: Collaborative learning involves two or more students working together towards a common goal. This active learning method has children explore and apply the curriculum while communicating and learning from each other, giving them confidence. Collaborative learning encourages individual progress, while cooperative learning encourages accountability with interdependence. 

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.

Provide a summary of this passage in 40-60 words. 

Energy efficiency is pivotal in combating climate change and reducing greenhouse gas emissions. It involves using less energy to perform the same task or produce the same result, thus saving resources and lowering costs. Innovations in technology and changes in behavior can significantly contribute to energy efficiency. Governments and organizations worldwide are investing heavily in green technologies and promoting policies that encourage energy-saving practices.
user
Energy efficiency reduces greenhouse gas emissions and saves resources by using less energy for the same tasks. Innovations in technology and behavior changes are crucial. Global investments in green technologies and policies encourage energy-saving practices to combat climate change and lower costs.
assistant