The world is getting warmer every year. It’s been warming ever since the start of the Industrial Revolution when the burning of fossil fuels began to significantly increase the amount of greenhouse gases in the atmosphere. Since the Industrial Revolution began, there has been a 50% increase in atmospheric carbon dioxide! 
The global average temperature has been rising by an average 0.08⁰C every decade since 1880. This rate has actually doubled to 0.18⁰C per decade since 1981. These numbers may seem small, but they have had a significant impact on the temperature of the Earth.
The warming is not evenly distributed either. Let’s take a look at the Arctic, for example, which is warming at a rate almost three times more than the global average! This is largely due to ice in the region melting and darker land being exposed. This means that heat-reflecting ice is replaced by heat-absorbing land, resulting in a greater speed of warming. This warming increases the rate of ice melting, causing more heating, resulting in what we call a ‘feedback loop’. 
Take a look at the images below, which show how much ice has melted between 1989 and 2020.

Sources:

Lindsey, R. and Dahlman, L. 2021. 'Climate Change: Global Temperature.' NOAA.

Thoman, R. 2020. Via Twitter.