EARTH DAY CELEBRATION AND LEARNING

Five things you didn't know about Earth Day

1.One billion people across the world will get involved with Earth Day this year
2.The celebration has its own flag that features a picture of the Earth taken from the Apollo 17 spacecraft on its way to the Moon
3.20 million people participated in the first ever Earth Day in 1970
4.No one knows where the name or date for the day came from as the organisers can't remember
5.In 2008 Disney launched Disney nature, a channel dedicated to environmental documentaries, in celebration of Earth Day

How to get involved

There are Earth Day events taking place across the globe. Google has created a special map with a selection of planned events in different countries.

You can get involved without attending an official event by trying some of the following activities:

1.Walk to work, cycle or take public transport
2.Use a reusable coffee cup
3.Make sure you recycle
4.Go paperless
5.Take a tote bag to the shop
6.Plant a tree
7.Go meat or dairy free at least once a week
8.Carry a reusable water bottle
9.Add the Earth Mode Google Chrome extension to your browser to monitor your energy use
10.Buy local produce

Global Warming Solution proposed by Scientists

With global temperatures rising inexorably, some scientists and national security theorists have pondered
cooling things down by tinkering mechanically with the planet’s climate.

The goal of this geoengineering would be to create an effect not unlike when clouds suddenly block the sun and chill a warm afternoon. Average surface temperatures might be held down by a few degrees worldwide, these experts suggest — enough, they theorize (maybe with fingers crossed), to stave off environmental cataclysm.

How to do this? With smoke and mirrors. For real.

One idea is to launch giant mirrors into space, where they would bounce back some of the sun’s energy.
Another suggestion involves spraying ocean water into the air to whiten clouds and thereby increase their capacity to deflect sunlight. Then there is a widely discussed plan to pump sulfate aerosols into the stratosphere. Those particles, too, would reflect the sun’s radiation back toward space, comparable to the effects of natural phenomena like volcanic eruptions. The haze created by the eruption of Mount Pinatubo in the Philippines in 1991 spread so widely that average global temperatures dropped by nearly one degree for more than a year.

Let’s set aside these proposals for a moment to first note that the aerosols plan faintly echoes a terrifying scenario that informs the latest offering from Retro Report, a series of video documentaries that study the
continuing impact of major news stories of the past.

With forests and scores of cities set ablaze, enough dust and smoke would be hurled into the upper atmosphere to blot out the sun. The darkening would last for many months, most oppressively in the Northern Hemisphere, though the Southern Hemisphere would hardly be immune. Beneath the sun-blocking canopy, surface temperatures would plummet, conceivably by as much as 60 degrees Fahrenheit. Plant and animal life would die. Famine would spread across the globe.