Isolated for 42 days in chambers of ambient and elevated CO2 concentrations, we periodically document the growth of cowpea plants (Vigna unguiculata) via time-lapse photography. NASA says CO2 is making Earth greener—for now. ... Studies have shown that increased concentrations of carbon dioxide increase photosynthesis, spurring plant growth. 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, according to a new study published in the journal Nature Climate Change on April 25.
An international team of 32 authors from 24 institutions in eight countries led the effort, which involved using satellite data from NASA’s Moderate Resolution Imaging Spectrometer and the National Oceanic and Atmospheric Administration’s Advanced Very High Resolution Radiometer instruments to help determine the leaf area index, or amount of leaf cover, over the planet’s vegetated regions. The greening represents an increase in leaves on plants and trees equivalent in area to two times the continental United States.
Green leaves use energy from sunlight through photosynthesis to chemically combine carbon dioxide drawn in from the air with water and nutrients tapped from the ground to produce sugars, which are the main source of food, fiber and fuel for life on Earth. Studies have shown that increased concentrations of carbon dioxide increase photosynthesis, spurring plant growth.
Prominent Scientist William Happer Tells Congress: Earth is in a ‘CO2 Famine - The increase of CO2 is not a cause for alarm and will be good for mankind - Children should not be force-fed propaganda, masquerading as science.
Washington, DC — Award-winning Princeton University Physicist Dr. Will Happer declared man-made global warming fears “mistaken” and noted that the Earth was currently in a “CO2 famine now.” Happer, who has published over 200 peer-reviewed scientific papers, made his remarks during today’s Environment and Public Works Full Committee Hearing entitled “Update on the Latest Global Warming Science.”
“Many people don’t realize that over geological time, we’re really in a CO2 famine now. Almost never has CO2 levels been as low as it has been in the Holocene (geologic epoch) – 280 (parts per million – ppm) – that’s unheard of. Most of the time [CO2 levels] have been at least 1000 (ppm) and it’s been quite higher than that,” Happer told the Senate Committee.
Music: Star of the Conqueror by Dhruva Aliman
https://dhruvaaliman.bandcamp.com/album/the-wolf-and-the-river
http://www.dhruvaaliman.com/
An international team of 32 authors from 24 institutions in eight countries led the effort, which involved using satellite data from NASA’s Moderate Resolution Imaging Spectrometer and the National Oceanic and Atmospheric Administration’s Advanced Very High Resolution Radiometer instruments to help determine the leaf area index, or amount of leaf cover, over the planet’s vegetated regions. The greening represents an increase in leaves on plants and trees equivalent in area to two times the continental United States.
Green leaves use energy from sunlight through photosynthesis to chemically combine carbon dioxide drawn in from the air with water and nutrients tapped from the ground to produce sugars, which are the main source of food, fiber and fuel for life on Earth. Studies have shown that increased concentrations of carbon dioxide increase photosynthesis, spurring plant growth.
Prominent Scientist William Happer Tells Congress: Earth is in a ‘CO2 Famine - The increase of CO2 is not a cause for alarm and will be good for mankind - Children should not be force-fed propaganda, masquerading as science.
Washington, DC — Award-winning Princeton University Physicist Dr. Will Happer declared man-made global warming fears “mistaken” and noted that the Earth was currently in a “CO2 famine now.” Happer, who has published over 200 peer-reviewed scientific papers, made his remarks during today’s Environment and Public Works Full Committee Hearing entitled “Update on the Latest Global Warming Science.”
“Many people don’t realize that over geological time, we’re really in a CO2 famine now. Almost never has CO2 levels been as low as it has been in the Holocene (geologic epoch) – 280 (parts per million – ppm) – that’s unheard of. Most of the time [CO2 levels] have been at least 1000 (ppm) and it’s been quite higher than that,” Happer told the Senate Committee.
Music: Star of the Conqueror by Dhruva Aliman
https://dhruvaaliman.bandcamp.com/album/the-wolf-and-the-river
http://www.dhruvaaliman.com/
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