目前，香港正面對氣候變化的難關。2007年，香港經歷了有紀錄以來，最熱的第二年。
科學家發現，全球暖化是由數重溫室氣體造成，而主要導致氣溫上升的元兇是二氧化碳。
在香港，由1997至2007年的人口增幅為6.8%，但人均用電量卻上升18.6%！其實發電過程產生大量二氧化碳，2007年住宅用電量約為101億度，電費約港元101億，
而所製造的二氧化碳超過757萬5千噸，即可放滿接近17萬個奧林匹克標準泳池或385萬部雙層巴士！
近年世界各地先後有熄燈行動，顯示各個政府、企業以至公眾都支持節約能源。我們必須携手合作，決心對抗全球氣候變化。

Right now, we are all facing the challenge of climate change. 2007 was the second hottest year since record keeping began. Scientists discovered that there are several greenhouse gases responsible for global warming, and the gas that causes the most warming is carbon dioxide, also called CO₂.

In Hong Kong, the population rose by 6.8% between 1997 and 2007, while the per capita electricity consumption rose by 18.6%! Actually, power plants emit huge amounts of CO₂ during the process of generating electricity. In 2007, household electricity consumption was about 10.1 billion kWh or HK$ 10.1 billion, equal to the emission of 7,575,000 tonnes of CO₂, i.e. the size of 170,000 Olympic swimming pools or 3,850,000 double-decker buses.

In recent years, lights out campaigns have been started around the world indicating the resolution of governments, corporations, and the public to address the issue. We need to join hands to tackle climate change through energy conservation together, for the benefit of everyone today and the generation of tomorrow.