What are the costs of sustainable development, and how long will it take to achieve?

I need to include these 2 components in a 1-pg report . . . I also need to discuss these topics:
- who might oppose sustainable development ;
- what might prove to be difficult to change .
Also , by sustainable development , I mean it regards the environment~
I apologize if this is in the wrong category [...]

What the most recent books on city sustainable development, experience of world cities?

Sustainable development, city planning, experience of cities around the globe.
This is a very old literature. However, the "new classic" book is "The Spatial Economy" by Fujita, Krugman, and Venables. There is some mathematics in the book, but the basic principles can be understood, I think, if you ignore the math.

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What are the modes of conservation for sustainable development and what are the three R’s?

I need to write about two pages on "Modes of Conservation for Sustainable Development" for my CBSE Class X EVS Project. I have to include the 4 R’s but I don’t know what they are. Please provide me with the information on the topic as well as the three R’s. Also give me the URL [...]

How does legislation work in relation to sustainable development?

College homework. The criteria asks for a description of how & why legislation and policies have been developed in relation to sustainable development. With so many other items to cover, my mind has gone blank =)
I am assuming you are in the UK…
http://www.defra.gov.UK/environment/sustainable/index.htm
this is the UK sustainable development main govt. site… if you read [...]