How can segregation of waste into biodegradable and non-biodegradable reduce the quantity of waste and can be utilised for generating sustainable energy?

Bio-fuels should be developed on a large scale as an alternative to fossil fuels and to reduce generation of waste. State your views.

Find out recent innovations by which waste has been used to form useful products.

What are eco bricks? Make a list of items that you can make using eco bricks.