We present a selection of the most striking imagery related to the environment from the past month.

In this photograph, lightning flashes during a thunderstorm over Monterrey, Mexico, on June 9.

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Visitors watch water gushing from the section of the Xiaolangdi Reservoir on the Yellow river, in Jiyuan, Henan province, China.

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Smoke rises from the Popocatepetl as it spews incandescent volcanic material on the outskirts of Puebla, Mexico.

The 5,450-metre (17,900 ft) Popocatepetl volcano has been kept on yellow phase two alert, the second-highest warning on the center's seven-step scale, according to local media.

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A horse is tied as part of its training to be a racing horse at an area of grasslands located 70 km from the Mongolian capital Ulan Bator.

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Tourists look at the rising "super moon" from the elevated skywalk of the Supertrees Grove at the Gardens by the Bay in Singapore.

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Kashmiri men fish from the weed-covered Dal Lake in Srinagar.

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A ship sails through the morning fog along the Yenisei River near Galanino village, about 250 km north of Russia's Siberian city of Krasnoyarsk.

Yenisei, one of the largest river systems in the world which rises in Mongolia and flows into the Arctic ocean, is the life artery for the residents populating its banks.

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Sara Calcinaro (L) and Marco Rizzelli of Italy walk in the Mesquite Dunes as high temperatures approach record levels in Death Valley National Park, California, United States of America.

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A man stands on a beach before the rain during the monsoon season in Colombo, Sri Lanka.

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A long exposure picture of the Kokino megalithic observatory is seen during summer solstice celebration in Kumanovo, Macedonia.

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People walk through algae-covered seaside in Qingdao, Shandong province, China.

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A woman uses a fork to dig for shellfish on the reef-mud flats of a lagoon at South Tarawa in the central Pacific island nation of Kiribati.

Kiribati consists of a chain of 33 atolls and islands that stand just metres above sea level, spread over a huge expanse of otherwise empty ocean.

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A lone tree stands out amongst a patch of burnt land, in the haze hit Bangko Pusako district in Rokan Hilir, on Indonesia's Riau province.

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A bird flies past the solar halo in the sky of Kathmandu. This weather phenomenon creates rainbows around the sun, and according to meteorologists, the halo is formed by the reflection of ice crystals.

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The moon rises over the temple of Poseidon, the ancient Greek god of the seas, as tourists enjoy the sunset in Cape Sounion some 60 km east of Athens.