Tang Yue pulled his cart, which was laden with solar panels while passing through the Battery Farm.
It was extremely arid on Mars. There was no place on Earth that could compare with it. In the Isidis Planitia, where Tang Yue was, it had not rained once in tens of millions of years. Rewinding the same amount of time on Earth, even the Sahara desert was a green oasis with monsoon rains.
Most of the water on Mars was frozen at the poles. In the low-lying valleys where sunlight could hardly reach, the frozen soil that contained moisture didn't melt for millions of years. This was the most massive source of water, measuring a total of a trillion tonnes. If humans wanted to colonize Mars in the future, that would be the most important source of water.
Speaking of which, Mars had plenty of resources. It had water and methane. Unfortunately, humans had short arms that couldn't reach them.
