Snyder, C. W.: Evolution of global temperature over the past two million years, Nature, 538, 226-228, https://doi.org/10.1038/nature19798, 2016.Snyder, C. W. Evolution of global temperature over the past two million years. Nature 538, 226-228 (2016)....
The study, led by James Hansen and colleagues at NASA’s Goddard Institute for Space Studies, reports that Earth is now within about 1°C of the maximum estimated temperature of the past million years. “That means that further global warming of 1.0°C defines a critical level. If warming ...
We estimate that 3.4 million km2 (confidence interval 2.9–3.8) of inland wetlands have been lost since 1700, primarily for conversion to croplands. This net loss of 21% (confidence interval 16–23%) of global wetland area is lower than that suggested previously by extrapolations of ...
“global warming” is usually applied exclusively to the observed rapid global temperature rise during the last 100–150 years, which is believed to be related to an anthropogenic enhancement of the greenhouse effect. It appears that over the past 50 years the average global temperature has ...
The U.S. economy has absorbed the massive changes the pandemic brought to the labor market, with 8.6 million occupational shifts over the three years of COVID—50% more than in the previous three years. Now another disruption has arrived: generative artificial intelligence, write Michael Chui, ...
The Institute also notes that the average surface temperature of Earth has gone from 14.5 degrees C in 1860 to 15.3 degrees C in 1980. The IPCC says that the pre-industrial amount of CO2 in the Earth's atmosphere was about 280 parts per million (ppm), meaning that for every million ...
Global warming, the phenomenon of rising average air temperatures near Earth’s surface over the past 100 to 200 years. Although Earth’s climate has been evolving since the dawn of geologic time, human activities since the Industrial Revolution have a g
For example, roughly 100 million years ago, during the Cretaceous Period (145 million to 66 million years ago), CO2 concentrations appear to have been several times higher than they are today (perhaps close to 2,000 ppm). Over the past 700,000 years, CO2 concentrations have varied over a...
Examines the science and arguments of global warming skepticism. Common objections like 'global warming is caused by the sun', 'temperature has changed naturally in the past' or 'other planets are warming too' are examined to see what the science really
A warmer planet doesn’t just raise temperatures. From wildfires to flooding to coral bleaching, here are some real-world implications.