President Donald Trump is expected to announce on Thursday whether the US will withdraw from the landmark Paris Agreement on climate change.

The international accord, which was signed by every country except Nicaragua and Syria, lays out a framework for countries to reduce their fossil-fuel emissions to help keep the planet's overall temperature from rising by more than 2 degrees Celsius.

Since the Industrial Revolution, humans have had an unmistakable impact on Earth that has accelerated over time. This impact pops out in sharp relief when you look at this collection of images of what specific areas look like now compared with about 70 years ago.