Image: US EPA Explain why greenhouse gases and the greenhouse effect are necessary for life.
The best way to not feel hopeless is to get up and do something. Don’t wait for good things to happen to you. If you go out and make some good things happen, you will fill the world with hope, you will fill yourself with hope. BARACK OBAMA
Image: US EPA Explain why greenhouse gases and the greenhouse effect are necessary for life.
Image: NASA. What are the causes and consequences of a warming Earth?
Image: CBC Without looking anything up, what do you think is the difference between weather and climate?
Image: Scientific American According to your book sustainable means “able to meet the current demand for a resource without depleting the future supply.” How do you think the concept of sustainability could be applied to urban areas?