Environmentalists are concerned that Poland's declaration could be used as an excuse to continue burning coal.
The agreement marks a rare moment of unity on an increasingly fraught topic.
For the second year in a row, climate advocates disrupted the U.S. government's attempts to promote coal and other fossil fuels at the United Nations climate conference.
Civil society says the Polish government is violating human rights and undermining the global climate negotiations by denying entry or deporting climate advocates.
Corporations with large carbon footprints tend to undermine global efforts to solve the climate crisis, according to climate advocates.
While climate negotiators meet behind closed doors, climate activists have put out their own set of demands.
Coal miners from Poland's Pniowek coal mine carry a painting of Saint Barbara on Barbórka, their annual day of tribute to Barbara, from the mine to their local church on December 4th, 2018, in Pawlowice, near Wodzislaw Slaski, Poland.
There has been a wave of demonstrations since the election of Poland's right-wing government in response to its increasing attacks on individual rights.
Recent studies find that Muslims throughout Europe repeatedly experience discrimination because of their religion.
Recent years have brought about an unparalleled growth in the popularity of right-wing radical groups in the country.