Antonio Guterres also called for 10 percent of global GDP to be spent on coronavirus relief aimed at healthcare and households.
"We seem to be hitting a wall," said Pedro Conceição, head of UNDP's Human Development Report Office.
Chinese authorities say locusts could reach the country from a number of entry points but for the moment, the risk remains low.
Israel's ambassador to the United Nations, Danny Danon, declared "we don't want" the Vermont senator--a Jew who previously lived in the country--to be allowed re-entry.
World Health Organization director-general Tedros Adhanom Ghebreyesus said countries should treat the new coronavirus from China as "public enemy number one."
In the field of Earth Sciences, there has been no progress for decades.
The United Nations sided with New Zealand courts in rejecting one climate asylum seeker's case, but made clear that other climate refugees must not be sent away.
Both the U.S. and Iran have justified recent military action as self-defense, but neither has provided evidence to prove it.
"When they started something like this and Iran responded proportionately, that phase was over. So, if the U.S. is going to start again, definitely we'll have to respond," Iranian Ambassador to the United Nations Majid Takht-Ravanchi told CNN.
Iranian Foreign Minister Mohammed Javad Zarif has been denied a visa to enter the U.S. just days before he was scheduled to attend a U.N. Security Council meeting in New York.
The secretary of state dismissed criticism that Donald Trump is threatening Iran with "war crimes," saying the president is a "reluctant participant" and doesn't want war with the Islamic Republic.
The U.S. urged fellow Security Council members to "act accordingly" in response to threats or provocation from Pyongyang amid stalled denuclearization talks.
With a focus on climate change, the United Nations celebrates this year's Human Rights Day by focusing on children and young adults.
The Swedish 16-year-old is heading to a UN climate change summit in Spain on a 48-foot catamaran.
The former ambassador to the United Nations has written a book about her time in the White House called "The Education of an Idealist."
After a unanimous vote in support of a resolution on women in peace and security on Tuesday in the UN Security Council, the US Mission to the UN released a press statement saying, "we cannot accept references to 'sexual and reproductive health.'"
"Given his state, it was impossible to ask him about his motive, but we imagine that it was the political situation," Geneva police spokesman Silvain Guillaume-Gentil told journalists.
Venezuela narrowly beat out Costa Rica for a seat on the U.N. council, just a month after the same body launched an investigation into human rights violations in the country.
UNICEF announced this year's theme as "GirlForce: Unscripted and Unstoppable," an occasion to "celebrate achievements by, with and for girls."
The United Nations is facing a cash shortage that could keep its staffers from being paid in November 2019.
According to UNESCO estimates, more than 69 million primary and secondary education teachers must be recruited by 2030.
The 16-year-old activist trolled the Russian leader after he said he did not share the excitement about her message.
The president wrote a tweet praising the "great work" of a supporter who was sharply criticizing the schoolgirl climate change activist.
A month after the appointment of Lt. General Shavendra Silva as chief of the Sri Lankan army, the United Nations announced a ban on Sri Lankan troops, citing concern over Silva's involvement in the death of tens of thousands of Sri Lankan Tamils during civil war.
The two men met on the sidelines of the United Nations General Assembly amid allegations that Trump asked Zelensky to investigate accusations of corruption against 2020 rival Joe Biden.
"Our region is on the edge of collapse, as a single blunder can fuel a big fire," Rouhani warned fellow Middle East leaders.
Robin DiMaggio, former U.N. Music Director, pleaded guilty to stealing funds earmarked for a Bulgarian benefit concert.
Trump has taken issues with China's World Trade Organization status as a "developing nation," as it allows Beijing preferential rules on tariffs.
Volodymyr Zelensky is meeting the U.S. president at the United Nations, as controversy grows over the allegation that Trump urged him to investigate Joe Biden and his son, Hunter.
The 16-year-old climate change activist spoke about President Donald Trump's tweet and the viral stare moment from her trip to the United Nations.