July 28, 2015
'Carbon sink' detected underneath world's desertsThe world's deserts may be storing some of the climate-changing carbon dioxide emitted by human activities, a new study suggests. Massive aquifers underneath deserts could hold more carbon than all the plants on land, according to the new research.
July 21, 2015
Greenhouse gas emissions from African riversTwelve scientists from the University of Liege, the KU Leuven and the Research Institute for Development (France), have just completed a large-scale research project conducted over a five-year period on the African continent.
July 20, 2015
Ocean acidification may cause dramatic changes to phytoplanktonOceans have absorbed up to 30 percent of human-made carbon dioxide around the world, storing dissolved carbon for hundreds of years.
July 9, 2015
Tropical peatland carbon losses from oil palm plantations may be underestimatedDraining tropical peatlands for oil palm plantations may result in nearly twice as much carbon loss as official estimates, according to a new study by researchers from the University of Minnesota Institute on the Environment and the Union of Concerned Scientists in the journal Environmental Research Letters.
June 11, 2015
Changing climate prompts boreal forest shiftWith warming summer temperatures across Alaska, white spruce tree growth in Interior Alaska has declined to record low levels, while the same species in Western Alaska is growing better than ever measured before.
May 26, 2015
Carbon Dioxide Levels Topped 400 PPM Throughout Northern Hemisphere In April, WMO SaysGENEVA, May 26 (Reuters) - Carbon dioxide levels throughout the northern hemisphere hit 400 parts per million (ppm) for the first time in human history in April, an ominous threshold for climate change, the World Meteorological Organization said on Monday.
May 8, 2015
Global Carbon Dioxide Levels Reach MilestoneNPR's Melissa Block speaks with Pieter Tans of the National Oceanic and Atmospheric Administration's Earth System Research Laboratory about greenhouse gas emissions surpassing 400 parts per million.
May 6, 2015
First time in 800,000 years: April's CO2 levels above 400 ppmLess than a year after scientists first warned that the amount of carbon dioxide in the atmosphere could rise above 400 parts per million and stay there, it has finally happened.
April 29, 2015
April Becomes 1st Month With CO2 Levels Above 400 PPMThe end of April has arrived, and with it, the record for the first month in human history with an average carbon dioxide level in Earth’s atmosphere above 400 parts per million has been set.
April 15, 2015
Increased atmospheric carbon dioxide limits soil storageSoil carbon may not be as stable as previously thought, scientists report, adding that soil microbes exert more direct control on carbon buildup than global climate models represent.
Watching the planet breathe
When plants photosynthesize, they use energy from sunlight to turn carbon dioxide from the air into sugars used to live and grow. In doing so, they give off a fluorescent light — a glow that can’t be seen with the naked eye, but that can be seen with the right instruments. More photosynthesis translates into more fluorescence, meaning that the plants are very productive in taking up carbon dioxide. The amount of carbon dioxide taken up by plants is called “gross primary productivity,” and is the largest part of the global carbon cycle.