We don't use our clothes long enough, and that is contributing to global warming.

Clothing sales have been increasing faster than world GDP. In 2015, 100 billion garments were sold worldwide, as against 50 billion in 2000. But as prices have fallen, we don't wear each garment as many times as we used to. This has created mountains of waste clothing. About 73% of discarded garments are either landfilled or burnt. Since 63% of the raw material for clothing is derived from petroleum, millions of tonnes of petroleum is wasted every year. While the industry is trying to remedy the situation with increased recycling and newer fibres that last longer, you can make a difference by using each article of clothing a few more times.

From a TOI piece!