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EarthTalk®

Dear EarthTalk: What is “genetic pollution” as it pertains to the bioengineering of animals, fish and plants, and what happens if they cross breed with their wild cousins? — R. Ahearn, Rome, NY

EarthTalk®

Dear EarthTalk: Some friends of mine were talking about a book called “Plan B” that proposes a plan for rescuing the environment and ending poverty around the world. Is it a realistic plan or just some utopian pipe dream? — Robin Jackson, Richmond, VA