Kurdish peshmerga troops participate in an intensive security deployment against Islamic State militants on the front line in Khazir, September 16, 2014.

Azad Lashkari/Reuters

Kurdish peshmerga troops participate in an intensive security deployment against Islamic State militants on the front line in Khazir

An Indonesian scavenger collects items from a garbage dump in Denpasar on the resort island of Bali on September 16, 2014. The Indonesian economy has expanded at around six percent in recent years but it has been easing in the past 12 months due to slowing demand for commodity exports, and interest rate hikes in 2013 during emerging market turmoil.

Sonny Tumbelaka

An Indonesian scavenger collects items from a garbage dump in Denpasar on the resort island of Bali on Tuesday

The silhouette of a cat walking on top of a fence stands out against the sky during sunrise near Sehnde, Germany on Tuesday. Indian summer, or Altweibersommer (old womens summer) in German, is a weather phenomenon which often brings sunny weather between mid-September and the start of October in parts of central Europe.

Julian Stratenschulte/EPA

The silhouette of a cat walking on top of a fence stands out against the sky during sunrise near Sehnde, Germany on Tuesday

A man rides his bicycle as people walk on the "first mobile phone sidewalk in China", which was recently installed at a tourism area in Chongqing municipality...A man rides his bicycle as people walk on the "first mobile phone sidewalk in China", which was recently installed at a tourism area in Chongqing municipality, September 13, 2014. The mobile phone sidewalk in Chongqing was divided into two sides -- one was written with "Cellphones walk in this lane at your own risk" while the other with "No cellphones", as an attempt to reduce pedestrian incidents, local media reported. Picture taken September 13, 2014.

China Daily/Reuters

A man rides his bicycle as people walk on the “first mobile phone sidewalk in China”, which was recently installed at a tourism area in Chongqing municipality

No campaigner Judy Shaw Stewart from Doune as she sits out at the A84 to protect vandalised NO Thanks signs  ahead of the Scottish Referendum on September 18th.  PRESS ASSOCIATION Photo. Picture date: Monday September 15, 2014.

Andrew Milligan/PA

No campaigner Judy Shaw Stewart from Doune as she sits out at the A84 to protect vandalised NO Thanks signs on Monday ahead of the Scottish Referendum on September 18th

A Kurdish Peshmerga fighter launches mortar shells towards Zummar, controlled by Islamic State (IS), near Mosul September 15, 2014.

Ahmed Jadallah /Reuters

A Kurdish Peshmerga fighter launches mortar shells towards Zummar, controlled by Islamic State (IS), near Mosul in Iraq

Attilane Forgacs wades in water flooding her house in Siofok, 102 kms southwest of Budapest, Hungary, Monday, Sept. 15, 2014, after three months  amount of rain fell on the town on Sunday.

MTI/Szilard Koszticsak/AP

Attilane Forgacs wades in water flooding her house in Siofok, 102 kms southwest of Budapest, Hungary on Monday, after three months worth of rain fell on the town on Sunday.

A woman embraces her friend, a volunteer of Ukrainian self-defence battalion "Azov", after he returned from the front line in Eastern regions of Ukraine, in Kiev...A woman embraces her friend, a volunteer of Ukrainian self-defence battalion "Azov", after he returned from the front line in Eastern regions of Ukraine, in Kiev September 15, 2014.

Valentyn Ogirenko/Reuters

A woman embraces her friend, a volunteer of Ukrainian self-defence battalion “Azov”, after he returned from the front line in Eastern regions of Ukraine, in Kiev on Monday

South Korean Marine Corps' amphibious vehicles take part in a ceremony to mark the 64th anniversary of Incheon Landing Operations conducted by the U.S.-led United Nations troop during the 1950-1953 Korean War, in the sea off Incheon, September 15, 2014.

News1/Reuters

South Korean Marine Corps’ amphibious vehicles take part in a ceremony to mark the 64th anniversary of Incheon Landing Operations conducted by the U.S.-led United Nations troop during the 1950-1953 Korean War, in the sea off Incheon

U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington September 12, 2014. In 1993, Clinton signed the bill that created AmeriCorps.

Kevin Lamarque/Reuters

U.S. President Barack Obama and former President Bill Clinton walk past the Rose Garden to host an event marking the 20th anniversary of the national service program AmeriCorps at the White House in Washington