remedies. So given the price of petrol, the ups and downs of the Rand value and the price of most organic food (and food in general), how practical is it to go green on a budget?, Carbon dioxide and other gases warm the surface of the planet naturally by trapping solar heat in the atmosphere. This keeps our planet habitable. However, by burning fossil fuels such as coal, gas and oil and clearing forests we have dramatically increased the amount of carbon dioxide in the Earth’s atmosphere and temperatures are rising., How do we know global warming is real? Who is responsible, and how can it be addressed? This article summarizes what is known (and some of the prevalent misconceptions) regarding this critical environmental problem., From Al Gore to Prince Charles, Mark Twain, Sir David Attenburough and Leonardo DiCaprio, many famous names have lent thier opinions and voices to the issues of climate change and global warming. Here is a collection of some of their best.