Electrical car ownership is set to increase by a factor of 25.

电动汽车保有量将翻25倍。

If something increases by a factor of a certain number, it becomes multiplied that many times.

如果某物翻了某一数字那么多倍数，那它就是成那么多倍地增加。

All over Antarctica, the loss of ice from the floating ice shelves has increased by a factor of 12 in the past two decades.

在过去的二十年里，整个南极洲浮冰架的冰流失量增加了 12 倍。

At the heart of the problem is that, in the future, green activities like driving electric cars and using solar power is going to increase by a factor of a hundred.

问题的核心是， 在未来，像驾驶电动汽车和使用太阳能这样的环保行为将翻百倍。