Mars: water means surfing

Surfing in Mars might have been a possibility. NASA's Curiosity rover mission has found evidence a stream once ran vigorously across the area on Mars where the rover is driving.

There is earlier evidence for the presence of water on Mars, but this evidence - images of rocks containing ancient streambed gravels - is the first of its kind. Imagery shows an alluvial fan of material washed down from the rim, streaked by many apparent channels, sitting uphill of the new finds.

The rounded shape of some stones in the conglomerate indicates long-distance transport from above the rim, where a channel named Peace Vallis feeds into the alluvial fan.

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Plastic bags: a threaten to the natural world

Plastic bags are losing the battle against Nature, with the precious help of world citizens and non-governmental organizations.

The plastic ban hype is spreading quickly, for the sake of Planet Earth and future generations. In San Francisco, Judge Teri L. Jackson confirmed the extension of the city ban on plastic checkout bags to all retail stores and restaurants.

The "Save the Plastic Bag Coalition", an association of plastic bag manufacturers and distributors brought suit to invalidate the law, arguing that the City had not properly complied with provisions of the California Environmental Quality Act and that the California Retail Food Code preempts the law because prohibitions on plastic bags for retail food facilities amount to a "health and sanitation standard."

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Ocean Health Index: measuring the quality of our waters

The world's first Ocean Health Index will measure the oceans and how people use them, with goal score of 100.

A team of collaborators from universities, non-profit organizations and government agencies has produced the first Ocean Health Index. Building the Index was a complicated task involving over 60 experts working in different parts of the world.

The Index can be used globally, regionally or for an individual bay. It allows for direct comparison across different aspects of ocean health and different locations in a way that is not possible with current assessment tools.

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