The earth may spin faster on its axis due to deforestation. Just as a figure skater's rate of spin increases when the arms are brought in close to the body, the cutting of tall trees may cause our planet to spin dangerously fast.
Birds take off at sunrise.
On the opposite side of the world, they are landing at sunset. This causes the earth to spin on its axis. The reason hot-rod owners raise the backs of their cars is that it's easier to go faster when you're always going downhill. The quantity of consonants in the English language is constant. If omitted in one place, they turn up in another.