https://science2017.globalchange.gov/chapter/executive-summary/
here is the gist of it:
Global annually averaged surface air temperature has increased by about 1.8°F (1.0°C) over the last 115 years (1901–2016). This period is now the warmest in the history of modern civilization. The last few years have also seen record-breaking, climate-related weather extremes, and the last three years have been the warmest years on record for the globe. These trends are expected to continue over climate timescales.
This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century. For the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence.
In addition to warming, many other aspects of global climate are changing, primarily in response to human activities. Thousands of studies conducted by researchers around the world have documented changes in surface, atmospheric, and oceanic temperatures; melting glaciers; diminishing snow cover; shrinking sea ice; rising sea levels; USGCRP)" title="" style="box-sizing: border-box; border-bottom-width: 1px; border-bottom-style: dotted; cursor: help;">ocean acidification; and increasing atmospheric water vapor.
TJ: waiting for T T T Tony no habla español Watts that you are saying sonny Watt to give him his talking points
SmithtonMensa: "I drove by MIT one afternoon in 1994 and took calculus in college, it can't be true"
here is the gist of it:
Global annually averaged surface air temperature has increased by about 1.8°F (1.0°C) over the last 115 years (1901–2016). This period is now the warmest in the history of modern civilization. The last few years have also seen record-breaking, climate-related weather extremes, and the last three years have been the warmest years on record for the globe. These trends are expected to continue over climate timescales.
This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century. For the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence.
In addition to warming, many other aspects of global climate are changing, primarily in response to human activities. Thousands of studies conducted by researchers around the world have documented changes in surface, atmospheric, and oceanic temperatures; melting glaciers; diminishing snow cover; shrinking sea ice; rising sea levels; USGCRP)" title="" style="box-sizing: border-box; border-bottom-width: 1px; border-bottom-style: dotted; cursor: help;">ocean acidification; and increasing atmospheric water vapor.
TJ: waiting for T T T Tony no habla español Watts that you are saying sonny Watt to give him his talking points
SmithtonMensa: "I drove by MIT one afternoon in 1994 and took calculus in college, it can't be true"
