Saturday 31st March, 8.30pm Marks Earth Hour
Hundreds of Millions of People, Businesses and Governments around the world unite each each year to support the largest environmental event in history.
More than 5200 countries in 135 countries will switch off their lights, sending a powerful message for action against climate change. Without a doubt it has proved that great things can be achieved when people come together for a common cause. Global warming is the greatest threat facing our planet today. A warming planet alters weather patterns, water supplies, seasonal growth for plants and a sustainable way of life for us, and the world’s wildlife. Climate change has already started, but it’s not too late to take action. There’s still time for us all to be part of the solution.
What is Climate change? A continuous flow of energy from the sun heats the Earth. Naturally occurring gases in the atmosphere, known as greenhouse gases, trap this heat like a blanket, keeping the Earth at an average of 15 degrees Celsius – warm enough to sustain life. Carbon dioxide (CO2) is the most significant of these gases. The amount of naturally produced CO2 is almost perfectly balanced by the amount naturally removed through photosynthesis and its dissolution in oceans. However, the overuse of fossil fuels is leading to increased CO2 in the atmosphere, trapping more and more heat and warming the Earth.
As a result, we’re seeing more dramatic weather patterns across the globe. The effects of Earth’s changing weather not only causes devastating natural disasters but shrinking of the world’s ice shelves and glaciers due to warming sea water. Because ice acts as a solar reflector, the less ice there is, the less heat the Earth reflects.
From the Eiffel Tower in Paris to the Empire State Building in New York City, the world’s tallest building the Burj Khalifa to the Leaning Tower in Pisa in Italy – at 8:30PM on March 31, the most visually captivating icons will go dark for Earth Hour 2012.
We'll be switching off, will you?
All information for this blog has come from http://www.earthhour.org