Today, a big list of events worldwide was published online at http://www.earthday.org/greencities/events/. The Earth League, which includes Nicholas Stern – the author of several influential reports on the economics of climate change., Hans Joachim Schellnhuber – a climate scientist and adviser to Angela Merkel and the US economist Jeffrey Sachs, urged world leaders to follow up on their commitments to avoid dangerous global warming. They issued an “Earth statement saying that “it’s the last chance to navigate ourselves towards a desired future.” According NASA, this year, Earth Day will end with a meteor shower because on April 22-23, Earth will pass through a stream of debris from Comet Thatcher.