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unenumerated.blogspot.com
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| | | | | The oxygen crisis in the history of life is well known. When photosynthesis arose, cyanobacteria and later plants started dumping large am... | |
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www.newscientist.com
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| | | | | The story of evolution spans over 3 billion years and shows how microscopic single-celled organisms transformed Earth and gave rise to complex organisms like animals | |
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science.nasa.gov
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| | | | | A quarter to half of Earth's vegetated lands has shown significant greening over the last 35 years largely due to rising levels of atmospheric carbon dioxide. | |
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www.nationalgeographic.com
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| | | Stretching almost 1,500 miles, the Great Barrier Reef is so vast that just 20% has been surveyed. With tourism funding millions in conservation each year, seeing the reef - guided by expert Master Reef Guides - may be the key to helping save it. | ||