Last month was the hottest September ever — and that’s not only bad because we’re all collectively sweating profusely.

As reported by Mic, September 2016 was the hottest September ever recorded in history. But while some may be rejoicing about the opportunity to get one last stretch out of their summer clothes, the effect of the weather on our planet is undeniable.

In a NASA press release concerning this information, Gavin Schmidt, director of Goddard Institute for Space Studies, explained that “while monthly rankings are newsworthy, they are not nearly as important as long-term trends.” But here’s the thing: our earth’s long-term trends are scary, too.

The temperatures increasing on the Earth’s surface have had effects on the the planet’s health. In the 2014 National Climate Assessment (NCA), information compiled from over 300 experts and researchers confirm that the oceans and atmosphere have increased in temperature as well. Coincidentally, snow and ice are melting, so coverage is lessening, and sea levels are higher.

Whether you believe it or not, the effects of climate change are doing serious and visible damage to our planet. And it’s only a matter of time before these changes are irreversible.