According to a recent study by scientists at the National Oceanic and Atmospheric Administration

(NOAA), the average global temperature has increased by 0.2 degrees Celsius per decade since 1880.  

This is a significant increase, and it is largely due to 

human activities, such as the burning of fossil fuels. 

The study found that the rate of global warming has accelerated in recent decades. 

From 1951 to 2010, the average global temperature increased by 0.14 degrees Celsius per decade. 

From 2011 to 2020, the rate of increase jumped to 0.2 degrees Celsius per decade. 

The study's authors say that the acceleration of global warming is a 

"clear sign" that human activities are the main cause of climate change. 

They say that we need to take urgent action to reduce greenhouse 

gas emissions and mitigate the effects of climate change.