A man sits waiting for a train on the London Underground in 1890, when the platform floors were still made from wooden floorboards. (Photo by Hi-Story/Alamy Stock Photo)
A man raises his fist as a group of Black Lives Matter marchers approached Brooklyn's Grand Army Plaza ast the beginning of a Caribbean-led rally, Sunday, June 14, 2020, in New York. Protests have grown since the May 25th death of George Floyd, a black man who died inn police custody in Minneapolis after a white police officer pressed his knee into Floyd's neck for nearly nine minutes. (Photo by Kathy Willens/AP Photo)
French army deminers secure a helicopter in a hangar at the Gao airport, on February 9, 2013. Two Malian soldiers and four civilians have already been killed by landmines, and French troops are still fighting off what Paris called “residual jihadists” in reclaimed territory. (Photo by Pascal Guyot/AFP Photo via The Atlantic)
A dog jumps into the air to catch a ball along the beach near the County Kerry village of Rossbeigh, Ireland, February 4, 2018. (Photo by Clodagh Kilcoyne/Reuters)
A photo taken from the International Space Station shows Hurricane Lane in the early morning hours near Hawaii, August 22, 2018. (Photo by Courtesy @astro_ricky/NASA/Handout via Reuters)
Global wildlife populations will decline by 67% by 2020 unless urgent action is taken to reduce human impact on species and ecosystems, warns the biennial Living Planet Index report from WWF (World Wide Fund for Nature) and ZSL (Zoological Society of London). From elephants to eels, here are some of the wildlife populations most affected by human activity. Here: The maned wolf is among the large mammals in the Brazilian Cerrado that are threatened by the increasing conversion of grasslands into farmland for grazing and growing crops. (Photo by Ben Cranke/Nature Picture Library/Alamy Stock Photo)