For the last couple of years I've been wanting to learn about how and when recycling works, cost comparison between recycled products and new products, environm

For the last couple of years I've been wanting to learn about how and when recycling works, cost comparison between recycled products and new products, environmental impact of landfill vs recycling, etc. I don't know where to look for information. What books should I read? what websites have good information and explanations? whom should I trust?