The next five years are almost guaranteed to be sweltering, the World Meteorological Organization (WMO) warned today. Climate change has already raised baseline temperatures for the planet. Now, a weather pattern known as El Ni?o is going to make things even hotter when it develops later this year.

That one-two punch from El Ni?o and climate change is expected to “push global temperatures into uncharted territory,” WMO Secretary-General Petteri Taalas said in a press release today. “This will have far-reaching repercussions for health, food security, water management and the environment. We need to be prepared.”