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.

(That time period is used as a benchmark for the preindustrial period.) But as you can see in the Berkeley Earth graph, the July 2023 temperature (farthest right) leapt far above previous years.

The conservative National Review, which has regularly criticized and rejected the scientific consensus on climate change, tweeted the following graph ... temperatures over that same time period ...

Earth’s temperature is changing faster now than at any time since the last ice age ... of the notorious “hockey stick” temperature graph all the way back to the end of the last ice age.

and his colleagues (and many other climate scientists who subsequently refined the graph). Reconstructing historical temperatures is difficult: investigators must combine information from tree ...

For the first time, the global average ... climate crisis impacts will be difficult — in some cases impossible — to reverse. Provisional ERA5 global temperature for 17th November from ...

A video viewed thousands of times online disputes the reliability of an authoritative graph showing cooling global temperatures over 1,000 years and rapid warming in the 20th century. A speaker in ...