Earth hour 2015 (Saturday) on March 28, was held at 8:30. In response to a global response to climate change, the theme of this year, earth hour in China will continue to focus on the current the most urgent environmental issues, the most closely watched - fog haze, "can you see the blue" initiative.

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"Can see blue, represents our Suggestions and expectations for the future. 'to', means that renewable energy can bring about change," blue "on behalf of each of us to say goodbye to the fog haze, looking forward to recover the blue sky." WWF China 'director-general, said the deepening earth hour 2014 "blue sky from" theme, on the basis of this year, earth hour will focus on energy issues, is committed to promoting the mainstream application of renewable energy.

In addition, with the theme of earth hour global AD released at the same time, the famous British rock band Bastille (Bastille) song, Pompey (Pompeii) as the background music, public display all over the world to tackle climate change has done positive contribution. Short film for the audience the United Nations secretary-general ban ki-moon, the United States President barack Obama, Emma Thompson (Emma Thompson), li bingbing, his fro (Marc Ruffalo), and other world leaders and international star support earth hour's classic moment, encourage the public to play their own strength to reverse climate change.

2015年地球一小时将于3月28日(星期六)晚8:30举行。为响应全球应对气候变化的主题，今年地球一小时在中国将继续聚焦当前最急迫、最受关注的环境议题——雾霾，发出“能见蔚蓝”的倡议。

“能见蔚蓝，代表了我们的建议和对未来的期待。’能’，意味着可再生能源能够带来改变，‘蔚蓝’代表我们每个人对告别雾霾、寻回蓝天的期待。”WWF中国总干事卢思骋表示，在深化2014地球一小时“蓝天自造”主题的基础上，今年的地球一小时将聚焦于能源议题，致力于推动可再生能源的主流化应用。

此外，与主题同时公布的地球一小时全球宣传片，采用英国著名摇滚乐队巴士底(Bastille)歌曲——庞贝(Pompeii)作为背景音乐，展示了世界各地公众为应对气候变化所做的积极贡献。短片为观众呈现联合国秘书长潘基文、美国总统奥巴马、演员艾玛汤普森(Emma Thompson)、李冰冰、马克鲁法洛(Marc Ruffalo)等世界领袖和国际明星支持地球一小时的经典时刻，鼓励公众发挥自己的力量扭转气候变化。