Global warming? what are the 6 biggest environmental problems?

More than four decades after the first Earth Day, there are still many environmental concerns for communities around the world to address - perhaps none so pressing as man-made global warming. But progress is being made, and it could be argued that awareness about environmental issues is at an all-time high. This Earth Day we&shining a light on the most pressing environmental issues affecting the planet - and showing what you can do to help restore ecological balance to our spinning blue ball.