President Carlos Alvarado met this week with Alok Sharma, the British politician who will preside over the 2021 United Nations Climate Change Conference, known as COP26.
La Niña typically causes an increase in rainfall in the Costa Rica's Central and Southern Pacific, and a decrease in rainfall in the southern Caribbean, according to the National Meteorological Institute (IMN).
Trump has cast the climate accord as elitist, saying when announcing his decision that he was "elected to represent the citizens of Pittsburgh, not Paris."