Fossil fuel production around the world must start winding down now to avoid the more extreme consequences of the climate emergency, according to a major new study.

Antonio Guterres, the head of the United Nations, challenged world leaders to make 2021 the year that humanity ends its "war on nature."

The United Nations has appealed for roughly $35 billion to help many of those expected to be in need next year.

The statement Thursday by Prime Minister Abiy Ahmed's office means tanks and other weaponry can now close in on the city of some half-million people.

Shelter homes and support groups call for increased government funding and involvement amid an increase in violence against women during the COVID-19 pandemic.

Many scientists expect the biggest annual fall in carbon emissions in generations this year as a result of coronavirus measures globally.

More than 5,000 refugees arrived in Sudan's border provinces of Kassala and al-Qadarif on Sunday, the highest single-day number of arrivals since the start of the conflict in Tigray earlier this month, the UNHCR said.

David Beasley said the Norwegian Nobel Committee was looking at the work the agency does every day in conflicts, disasters and refugee camps, often putting staffers' lives at risk to feed millions of hungry people.

Bashar Assad's comments came at the opening session of a Russia-organized two-day international conference in Damascus on the return of refugees.

Environmental activist Greta Thunberg revived one of Trump's old attacks and used it against him on Twitter.