The graph is correct. It shows the average temperature in each year since 1880, using data from NASA. The problem with it is that it is misleading, using a scale that intentionally hides the ...

The Associated Press reported on stories using an out-of-context graph from the National Oceanic and Atmospheric Administration to falsely claim that the Earth's climate is cooling, not warming.

The graph shows spikes and drops in temperature over the past 9,500 years, charting how much higher or lower each year’s temperatures are than the average temperature over the entire time period.

Back in 1999, Penn State University climate scientist Michael Mann released the climate change movement’s most potent symbol: The “hockey stick,” a line graph of global temperature over the ...

The hockey stick: The original and later versions. Temperature reconstructions of the past 1000 years See all climate myths in our special feature. Updated: See final section. In fact, later ...

A chart of temperature variation over 1,000 years dubbed the "hockey stick" has entered into the folklore of climate scientists, but how accurate is it?