Carbon Dioxide Concentration in the Earth ’s Atmosphere Has Hit Levels Unseen for 3 Million Years

The concentration of carbon dioxide in the Earth’s atmosphere has reached levels not seen for 3 million years, scientists at Mauna Loa Observatory in Hawaii said Monday – offering a dire warning about the impact of human activity on the planet. The observatory’s sensors registered carbon dioxide levels of 415 parts per million (ppm) on Saturday, meaning CO2 made up 415 of ever 1 million molecules of gas in the atmosphere. CO2 – which is emitted when we burn fossil fuels like coal, oil and natural gas – is a greenhouse gas which traps heat in the earth’s atmosphere, contributing to the global temperature increases which drives climate change. The concentration of CO2 has been rising by an average of 2.5 ppm over the last decade. But the increase from 2018 to 2019 will likely be around 3ppm, Ralph Keeling, director of the Scripps C02 program which runs the Manua Loa Observatory, said in a statement. “Every year it goes up like this we should be saying ‘No, this shouldn’t be happening. It’s not normal,” Keeling said. “This increase is just not sustainable in terms of energy use and in terms of what we are doing to the planet.” This is the first time in human history that the concentration of the gas has topped 415 ppm, meteorologist Eric Holthaus warned on Twitter. This is the first time in human history our planet's atmosphere has had more than 415ppm CO2. Not just in recorded history, not jus...
Source: TIME: Science - Category: Science Authors: Tags: Uncategorized climate change earth onetime Source Type: news

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Source: Medscape Cardiology Headlines - Category: Cardiology Tags: Cardiology News Source Type: news
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Source: RSC - Organic and Biomolecular Chemistry - Category: Molecular Biology Authors: Source Type: research
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Source: Infectious Diseases in Clinical Practice - Category: Infectious Diseases Tags: Original Articles Source Type: research
Conditions:   Exostosis of Elbow;   Upper Extremity Fracture;   Burn; Arm;   Burn Scald Intervention:   Device: Immersive Virtual Reality Sponsors:   Sheffield Hallam University;   Medical Research Council Completed
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Source: Acta Dermatovenerologica Alpina, Panonica, et Adriatica - Category: Dermatology Tags: Acta Dermatovenerol Alp Pannonica Adriat Source Type: research
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Source: Healthcare News - Category: Pharmaceuticals Authors: Source Type: news
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The discovery that frozen sperm can survive space flight opens up tantalising possibilities. But there ’s no guarantee of utopiaIf you ’re a woman who has despaired over the past week, as you’ve observed the questionable conduct of jowly white men in positions of power and subsequently seen it defended by both men and women – take heart. The good news is that when our species eventually abandons this burned-out, used-up plane t for a brave new world elsewhere in the universe, we can leave the men behind too. According to new research by scientists in Barcelona,frozen sperm can survive zero gravity c...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Space Gender Science Women Source Type: news
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