Constraints:
- Your response should contain at least 5 sentences.
- Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*.
- At the end of your response, please explicitly add a postscript starting with *P.S.*
- In your response, the word "impact" should appear at least 3 times.
- Your entire response should be in English, and in all lowercase letters. no capital letters are allowed.
- Include keywords [drought, soil, crops, temperature, water] in the response.
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