PM Imran Khan said protecting planet was the biggest service to humanity by making it liveable for future generations.
He mentioned 10 Billion Tree Tsunami, steps for cleaning of rivers and air and waste disposal system as significant projects under the umbrella of environmental protection programme.
Imran Khan said Pakistan's northern areas exuded unmatched scenic beauty in the world, however regretted that timber mafia under patronage of politicians wreaked havoc with natural environment.
He said strict action was taken against such mafia by the provincial government of Pakistan Tehreek-e-Insaf to check ruthless cutting of forests. He recalled visiting Himalayas every summer during early years of life, which he said developed his passion for protecting Pakistan's natural environment.
He said in his book written 30 years ago, he warned about the looming dangers to the country's forests and also made a pledge to take strong measures for environmental protection.
The PM mentioned worsening air pollution in the neighbouring India and said smog in Lahore was also a matter of concern, which required urgent steps.
Calling youth a vital driving force in championing the cause of environmental protection, the PM said the subject would be included in educational curriculum to sensitive students at grassroots level.
The PM expressed confidence that the conference that gathered experts from 35 countries would find ways towards proposals for effective policy on environment conservation.
IUCN President Zhang Xinsheng highlighted the importance of collective efforts by governments and civil society organisations to achieve the shared goal to protect nature. He said the aim of IUCN was to encourage international cooperation and provide scientific knowledge and tools to guide conservation action.
Adviser to PM on Climate Change Malik Amin Aslam said his ministry would carry out a five-point agenda including 10 billion tree tsunami, banning single-use plastic ban, Clean Green Index to change behaviour on waste management, Electric Vehicle Policy and Recharge Pakistan project on ecosystem restoration.