Photo taken in New York, the United States on Sept. 28, 2020 shows Austrian President Alexander Van der Bellen addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows British Prime Minister Boris Johnson addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows European Commission President Ursula von der Leyen addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows Marco Lambertini, Director General of the World Wildlife Fund, addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows Pakistani Prime Minister Imran Khan addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows Kenyan President Uhuru Kenyatta addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows United Nations Secretary-General Antonio Guterres addressing the virtual event "Leaders' Pledge for Nature" via a video message. World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows Volkan Bozkir, president of the 75th session of the United Nations General Assembly, addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows Colombian President Ivan Duque addressing the virtual event "Leaders' Pledge for Nature". World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)

Photo taken in New York, the United States on Sept. 28, 2020 shows United Nations Secretary-General Antonio Guterres addressing the virtual event "Leaders' Pledge for Nature" via a video message. World leaders on Monday pledged to take urgent action over the next 10 years to put nature and biodiversity on a path to recovery by 2030. (Xinhua/Wang Ying)