[Twosugars]

Multiple studies published in peer-reviewed scientific journals1 show that 97 percent or more of actively publishing climate scientists agree*: Climate-warming trends over the past century are extremely likely due to human activities. In addition, most of the leading scientific organizations worldwide have issued public statements endorsing this position.
Nasa

The scientific consensus is that the global average surface temperature has risen over the past century. Scientific opinion on climate change was summarized in the 2001 Third Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). The main conclusions on global warming at that time were as follows:

The global average surface temperature has risen 0.6 ± 0.2 °C since the late 19th century, and 0.17 °C per decade in the years 1971–2001.[5]
"There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities", in particular emissions of the greenhouse gases carbon dioxide and methane.[6]
If greenhouse gas emissions continue the warming will also continue, with temperatures projected to increase by 1.4 °C to 5.8 °C between 1990 and 2100.[A] Accompanying this temperature increase will be increases in some types of extreme weather and a projected sea level rise.[7] The balance of impacts of global warming become significantly negative at larger values of warming.[8]
These findings are recognized by the national science academies of all the major industrialized nations;[9] the consensus has strengthened over time[10] and is now virtually unanimous.[11] The level of consensus correlates with expertise in climate science.[12]
Wikipedia

[Alf]

Originally Posted by Twosugars

Multiple studies published in peer-reviewed scientific journals1 show that 97 percent or more of actively publishing climate scientists agree*: Climate-warming trends over the past century are extremely likely due to human activities. In addition, most of the leading scientific organizations worldwide have issued public statements endorsing this position.
Nasa

The scientific consensus is that the global average surface temperature has risen over the past century. Scientific opinion on climate change was summarized in the 2001 Third Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). The main conclusions on global warming at that time were as follows:

The global average surface temperature has risen 0.6 ± 0.2 °C since the late 19th century, and 0.17 °C per decade in the years 1971–2001.[5]
"There is new and stronger evidence that most of the warming observed over the last 50 years is attributable to human activities", in particular emissions of the greenhouse gases carbon dioxide and methane.[6]
If greenhouse gas emissions continue the warming will also continue, with temperatures projected to increase by 1.4 °C to 5.8 °C between 1990 and 2100.[A] Accompanying this temperature increase will be increases in some types of extreme weather and a projected sea level rise.[7] The balance of impacts of global warming become significantly negative at larger values of warming.[8]
These findings are recognized by the national science academies of all the major industrialized nations;[9] the consensus has strengthened over time[10] and is now virtually unanimous.[11] The level of consensus correlates with expertise in climate science.[12]
Wikipedia

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