Imagine a blue car which gets drifted on a wet road with yellow leaves. Isn't it like the rainy season has drifted through the road for which he is primarily responsible (since water accumulation reduces μ). The road of seasons denoted the cyclic nature of seasons. The rainy season started on time but due to deforestation, usage of fossil fuels etc... causing global warming has risen to rainy season drifting off early whereas autumn has chipped in well ahead of time. Humans should act fast!!