How fast were trains traveling intentionally Pennsylvania to Mississippi?

Fastest Train: 30h 35m

Explanation:

The distance between Philadelphia and Jackson is approximately 989 miles, or 1592 kilometers. The average train journey between these two cities takes 41 hours and 15 minutes, although the absolute fastest you could get there is 35 hours and 40 minutes.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.