Merkel to address climate talks amid calls for coal exit

FILE - In this April 3, 2014 file photo giant machines dig for brown coal at the open-cast mining Garzweiler in front of a power plant near the city o

FILE - In this April 3, 2014 file photo giant machines dig for brown coal at the open-cast mining Garzweiler in front of a power plant near the city o

FILE - In this March 14, 2014 file photo a layer of smog covers the city of Brussels. World leaders arrive at the global climate talks in Germany on W

FILE - In this March 14, 2014 file photo a layer of smog covers the city of Brussels. World leaders arrive at the global climate talks in Germany on W

FILE - In this Jan 4, 2017 file photo a traffic warden wearing a protection mask walks on a street near Tiananmen Square in Beijing as the capital of

FILE - In this Jan 4, 2017 file photo a traffic warden wearing a protection mask walks on a street near Tiananmen Square in Beijing as the capital of

1,200 candles are  placed by environmental activists, in  front of a building close to the German federal parliament, a where German Chancellor Angela

1,200 candles are placed by environmental activists, in front of a building close to the German federal parliament, a where German Chancellor Angela

The Generali balloon, which measures air quality flies behind the Eiffel Tower in Paris, Tuesday, Nov. 14, 2017. The COP 23 Fiji UN Climate Change Con

The Generali balloon, which measures air quality flies behind the Eiffel Tower in Paris, Tuesday, Nov. 14, 2017. The COP 23 Fiji UN Climate Change Con

BONN, Germany (AP) — World leaders arrive at the global climate talks in Germany on Wednesday to give the negotiations a boost going into the final stretch.

Attention will focus in particular on German Chancellor Angela Merkel, who faces growing pressure to announce a firm deadline for ending her country's use of coal.

Environmental campaigners and poor countries say Merkel should use the event on home turf to signal Germany will phase out the heavily polluting fossil fuel by 2030.

But the timing is difficult for Merkel. After speaking at the climate talks in Bonn she flies back to Berlin for negotiations on forming a new government that would include a pro-business party, the Free Democrats, which opposes a coal deadline.

Also speaking Wednesday are U.N. Secretary-General Antonio Guterres and French President Emmanuel Macron.