He told the United Nations General Assembly on Friday to come together and “act now” before it is too late.
“One thing is very clear, what happened in Pakistan will not stay in Pakistan,” Sharif told world leaders.
“For 40 days and 40 nights, a biblical flood fell, shattering centuries of meteorological records, challenging everything we knew about disaster and how to manage it,” Sharif said.
Sharif said parts of the country were “still underwater, submerged in an ocean of human suffering”.
“At this ground zero of climate change, 33 million people, including women and children, are now at high risk of health risks,” he said.
“The undeniable and inconvenient truth is that this disaster was not caused by anything we have done,” he said.
Pakistan is responsible for less than 1% of the world’s global warming gases, according to European Union data, yet it is the eighth most vulnerable nation to the climate crisis, according to the Global Climate Risk Index.
It pays a heavy price, not only in lives but also in destroyed schools, homes and bridges.
Sharif said life in Pakistan had changed forever and feared the country would be “left high and dry alone to deal with a crisis we did not create”.
He explained that it was “perfectly reasonable” to expect some approach to justice for this loss and damage, warning that “clearly the time for talk of action has passed.”
The country’s National Disaster Management Authority says that of the 1,606 deaths recorded so far, 579 are children.
Sharif told the UN that in addition to the lives lost, one million homes have been destroyed and another million damaged. He also said that more than one million farm animals have been killed and four million hectares of crops have been washed away.
He said he was “fully committed” to rebuilding Pakistan, but warned other countries to focus on the future, which includes combating climate change.
“It is time to take a break from the concerns of the 20th century to return to the challenges of the 21st century,” Sharif said.
“The entire definition of national security has changed today. And if the world’s leaders don’t come together to act and act now on an agreed common agenda, there will be no earth left to fight. Nature will fight back. And that’s why, mankind is no match at all.’