此文从美国、海地、日本等多国自然灾害引发开放数据运动的案例入手，剖析数据可能的发展与使用途径，为公益与数据的结合提供参考。

北京时间3月11日下午，日本本州东海岸附近海域发生最高为里氏9.0级的多次强烈地震，随后引起海啸。全世界媒体迅速关注并跟踪报道。此文旨在回顾比较不同国家的媒体报道有何区别，以及不同平台的报道差异。

This Friday I was at the University of Hong Kong, giving a guest lecture in its Environmental Journalism class (graduate-level). I talked about how social media can help environmental journalists and this field of journalism, from finding story ideas to marketing your story. Below is a summary of what I covered in that one hour, combined with the comments from the audience.