Pins from terradaily.com
Mantle plumes crack continents In some parts of the Earth, material rises upwards like a column from the boundary layer of the Earth's core and the lower mantel to just below the Earth's crust hundreds of kilometres above. Halted by the resistance of the hard crust and lithospheric mantle, the flow of material becomes wider, taking on a mushroom-like shape. Specialists call these magma columns "mantle plumes" or simply "plumes". Are mantel plumes responsible for the African rift system?
Trinity geologists re-write Earth's evolutionary history books Geologists from Trinity College Dublin have rewritten the evolutionary history books by finding that oxygen-producing life forms were present on Earth some 3 billion years ago - a full 60 million years earlier than previously thought. These life forms were responsible for adding oxygen (O2) to our atmosphere, which laid the foundations for more complex life to evolve and proliferate.
Small variations in the climate system can result in dramatic temperature changes for the first time, a group of researchers (at the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research), have been able to reconstruct these climate changes during the last ice age using a series of model simulations. The surprising finding is that minor variations in the ice sheet size can be sufficient to trigger abrupt climate changes.
Rotting Body Row As India Mourns Missing Vultures
The Italian navy rescued over 2,700 migrants from boats attempting to cross the Mediterranean from North Africa in one weekend (July/2014); it has saved ~93,000 immigrants from rickety boats since the beginning of the year, but many hundreds die at sea. These people are fleeing extreme hunger, starvation, violence, and conditions that threaten their lives.
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