Mars scientists are wrestling with a problem. Ample evidence says ancient Mars was sometimes wet, with water flowing and pooling on the planet's surface. Yet, the ancient sun was about one-third less warm and climate modelers ...
Space Exploration
Feb 6, 2017
21
1337
Nearly two decades of NASA technology investment in lidar systems and two-micron transmitters has resulted in a new capability for remotely measuring the carbon dioxide (CO2) levels in Earth's atmosphere. NASA has developed ...
Environment
Jan 30, 2017
0
8
Twenty-three million years ago, the Antarctic Ice Sheet began to shrink, going from an expanse larger than today's to one about half its modern size. Computer models suggested a spike in carbon dioxide levels as the cause, ...
Earth Sciences
Oct 11, 2016
14
0
A common type of blue-green algae is finding it easy to adapt to Earth's rising CO2 levels, meaning blue-green algae – of which there are many toxin-producing varieties – are even more adept at handling changing climatic ...
Environment
Aug 4, 2016
0
80
The Earth passed another unfortunate milestone May 23 when carbon dioxide (CO2) surpassed 400 parts per million (ppm) at the South Pole for the first time in 4 million years.
Environment
Jun 17, 2016
55
487
Atmospheric carbon dioxide concentration was the major driver behind the global climatic shifts that occurred between 53 and 34 million years ago, according to new research led by the University of Southampton.
Earth Sciences
Apr 25, 2016
0
101
In the race against world hunger, we're running out of time. By 2050, the global population will have grown and urbanized so much that we will need to produce 87 percent more of the four primary food crops - rice, wheat, ...
Biotechnology
Mar 29, 2016
16
110
The level of carbon dioxide in the atmosphere increased at a record pace last year, US government scientists reported, raising new concern about one of the top greenhouse gases and the effects of global warming.
Environment
Mar 10, 2016
4
576
The annual growth rate of atmospheric carbon dioxide measured at NOAA's Mauna Loa Observatory in Hawaii jumped by 3.05 parts per million during 2015, the largest year-to-year increase in 56 years of research.
Environment
Mar 10, 2016
0
19
The combination of erosion and melting ice caps led to a massive increase in volcanic activity at the end of the last ice age, according to new research. As the climate warmed, the ice caps melted, decreasing the pressure ...
Earth Sciences
Feb 1, 2016
2
109
