Climate activist Greta Thunberg told the world's political and business leaders Tuesday that the global movement sparked by her school strike was only the very beginning in the fight against global warming and much more has to be done.

“It wasn't only me, but all these young people pushing together ... to form these alliances,” the Swedish teenager said, speaking at a panel at the World Economic Forum in Davos with other young activists. “People are more aware now ... climate and environment are a hot topic now."

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Swedish environmental activist Greta Thunberg, center, Autumn Peltier, Chief Water Commissioner of the Anishinabek Nation, right, and Salvador Gomez-Colon, founder of Light & Hope for Puerto Rico, left, take their seats at the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Climate activist Greta Thunberg told the world's political and business leaders Tuesday that the global movement sparked by her school strike was only the very beginning in the fight against global warming and much more has to be done.

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

“This is just the very beginning,” she said, adding that everyone needs to listen more to the science regarding climate change and the heating of the planet.

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg, center, takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg, center, takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

However, Thunberg said, the struggle against climate change will require more than just general awareness.

Swedish environmental activist Greta Thunberg, center, Autumn Peltier, Chief Water Commissioner of the Anishinabek Nation, right, and Salvador Gomez-Colon, founder of Light & Hope for Puerto Rico, left, take their seats at the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg, center, Autumn Peltier, Chief Water Commissioner of the Anishinabek Nation, right, and Salvador Gomez-Colon, founder of Light & Hope for Puerto Rico, left, take their seats at the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

“This is just the very beginning,” she said, adding that everyone needs to listen more to the science regarding climate change and the heating of the planet.

“Without treating it as a real crisis we cannot solve it.”

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg, center, takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)

Swedish environmental activist Greta Thunberg, center, takes her seat prior to the opening session of the World Economic Forum in Davos, Switzerland, Tuesday, Jan. 21, 2020. The 50th annual meeting of the forum will take place in Davos from Jan. 20 until Jan. 24, 2020. (AP PhotoMarkus Schreiber)