The big island of Hawaii in an image taken by European Space Agency astronaut Samantha Cristoforetti from the International Space Station. REUTERS/NASA/ESA/Samantha Cristoforetti

Egmont National Park in New Zealand with Mt. Taranaki at its center is seen in a Landsat 8 satellite image. REUTERS/NASA/USGS/Handout via Reuters

Oil goes into a tailings pond at the Suncor tar sands operations near Fort McMurray, Alberta. REUTERS/Todd Korol

Late summer plankton blooms across much of Lake Ontario. REUTERS/NASA

An aerial view shows the Zaatari refugee camp for displaced Syrians, near the Jordanian city of Mafraq. REUTERS/Mandel Ngan/Pool

A general view of a road next to sand dunes covered in vegetation in the Pilbara region of Western Australia. REUTERS/David Gray

Heavy fog rolls by early in the morning near the Dubai Marina. REUTERS/Steve Crisp

The town of Susuz is seen on the northern shore of the Ataturk dam through the window of a passenger aircraft flying over south-eastern Turkey province of Adiyaman. REUTERS/Yannis Behrakis

Tatshenshini-Alsek Park is seen during a flight over northwest British Columbia. REUTERS/Bob Strong

Japan's Mount Fuji is seen covered with snow. REUTERS/Issei Kato

Ha Long Bay in Vietnam is seen from a seaplane. REUTERS/Kham

People sunbathe and swim at the beach of Wannsee, near Berlin. REUTERS/Axel Schmidt

An aerial view of a house in its compound in Leer, Unity State, South Sudan. REUTERS/Andreea Campeanu

An aerial view shows the diplomatic area of Doha, Qatar. REUTERS/Fadi Al-Assaad

A general view of dried-up rivers in the Pilbara region of Western Australia. REUTERS/David Gray

An aerial view of the Burj Dubai, the world's tallest tower, in Dubai. REUTERS/Matthias Seifert

An aerial view of the Iguazu Falls is seen in the Argentinian northwest province of Misiones. REUTERS/Raul Puentes

A Bedouin village in Israel. REUTERS/Amir Cohen

An aerial view of Big Sur, the Santa Lucia coastal mountain range and the Los Padres National Forest, California. REUTERS/Michael Fiala

A small dam (L) containing water is seen in a dry paddock next to another that has been affected by a fire on the outskirts of Melbourne, Australia. REUTERS/David Gray

An aerial view of a tributary of the Solimoes river, one of the main tributaries of the Amazon, in the Mamiraua nature reserve near Tefe, Brazil. REUTERS/Bruno Kelly

Parts of a forest that have been burnt during haze in Indonesia's Riau province. REUTERS/ Beawiharta

The streets and houses of Baghdad, Iraq. REUTERS/Brendan Smialowski/Pool