* Astronomy

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RE: Earth Day

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New NSF special report released ahead of Earth Day: April Showers Bring The Science of Spring

From flowers' microscopic cells to thunderstorms called supercells, researchers funded by the National Science Foundation (NSF) are studying the science of spring. Now, in time for Earth Day, a new NSF special report -- April Showers Bring...The Science of Spring -- looks at what makes spring such a vibrant, and sometimes dangerous, season.
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NASA Celebrates Earth Day with Public Events, Online Activities

This year, NASA will celebrate Earth Day, April 22, with a variety of live and online activities Thursday and Friday, April 20-21, to engage the public in the agencys mission to better understand and protect our home planet.
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Earth Day Greetings from the ISS

Spoiler

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Earth Day is an annual day on which events are held worldwide to demonstrate support for environmental protection. Earth Day is observed on April 22 each year. The April 22 date was designated as International Mother Earth Day by a consensus resolution adopted by the United Nations in 2009.
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earthday tokyo 2012

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Michael Woods - Last Day On Earth (Black Spark Remix)

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Major Earth Day events have been held in subsequent years, always on 22 April - the same date as the original event. In 1990 the event went global for the first time with activities involving an estimated 200 million people in 141 countries. The day's 30th anniversary in 2000 was used to promote a global call for cleaner energy while 2010 saw the launch an initiative to plant 1m trees.
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Earth Day is a day that is intended to inspire awareness and appreciation for the Earth's natural environment. The name and concept of Earth Day was allegedly pioneered by John McConnell in 1969 at a UNESCO Conference in San Francisco. The first Proclamation of Earth Day was by San Francisco, the City of Saint Francis, patron saint of ecology. Earth Day was first observed in San Francisco and other cities on March 21, 1970, the first day of Spring.
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In recognition of the power of millions of individual actions, Earth Day 2011 will be organised around A Billion Acts of Green®: Personal, organisational and corporate pledges to live and act sustainably. At over 42 million actions to date, the Billion Acts of Green® campaign - the largest environmental service campaign in the world - is steadily building commitments by individuals, corporations, and governments in honour of Earth Day.
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