Politics
World leaders including U.S. President Barack Obama are holding a summit on climate change at the United Nations. The BBC writes:
The aim at the New York meeting is to galvanise member states to sign up to a comprehensive new global climate agreement at talks in Paris next year. "Climate change is the defining issue of our time.
Now is the time for action," U.N. Secretary-General Ban Ki-moon said ahead of the summit. Mr Ban will discuss the issue with 125 heads of state and government. With so many nations attending the summit at the U.N. headquarters and so little time at the one-day meeting, three separate sessions will run simultaneously in three different rooms.
The BBC's Nick Bryant says it will be a feat of huge choreographic complexity. Mr Ban has organised the summit and on Sunday took part in a climate change march in New York with thousands of protesters - including Hollywood actor Leonardo DiCaprio, who has recently been appointed a UN representative on climate change.
On Monday, more than 100 people were arrested after they refused to leave a protest near Wall Street. At one stage, demonstrators tried to push past police barricades, sparking a brief clash with officers.
