UN chief Antonio Guterres has for “peace among ourselves” in order to save the planet, as devastating conflicts rage in Ukraine, Gaza, Lebanon and Sudan, AFP reports.

“We need peace with nature and we need peace among ourselves,” Guterres told journalists in Cali, Colombia, where he attended a UN summit that is seeking ways to “halt and reverse” humankind’s destruction of Earth’s bountiful resources.

“We need to make peace among ourselves because wars … have some of the most devastating impacts on biodiversity, on climate and on pollution,” the secretary general said.

He reiterated calls for a “just peace” in Ukraine and an immediate ceasefire in Gaza, with “massive” humanitarian aid to the people there and the release of all hostages held by Hamas since its attack on Israel more than a year ago.

Guterres also underlined the need for a peace in Lebanon “that respects Lebanese sovereignty and Lebanese territorial integrity and paves the way for a political solution,” after Israel expanded its military offensive into that country.