Cyclists

Cyclists perform a stunt as they practice ahead of the Hip-Hop Carnival in Kolkata

Rupak De Chowdhuri/Reuters

Cyclists perform a stunt as they practise ahead of the Hip-Hop Carnival in Kolkata, India, on Tuesday.

Cyclists start the Sport Stage of the 2nd day of Dubai Tour in Dubai, United Arab Emirates, Thursday, Feb. 6, 2014.

Kamran Jebreili/AP

Cyclists start the sport stage of the 2nd day of the Dubai Tour on Thursday

Residents cover their face from dust as they ride their bicycles along a street on a hazy day in Zhengzhou, Henan province. Commentaries by two of China's most influential news outlets suggesting that an ongoing air pollution crisis was not without a silver lining drew a withering reaction on Tuesday from internet users and other media. The Global Times said smog could be useful in military situations, as it could hinder the use of guided missiles, while CCTV listed five "unforeseen rewards" for smog, including helping Chinese people's sense of humour.

Reuters

Cyclists cover their faces on a hazy day in Zhengzhou, Henan province, China. Two of the country’s most influential news outlets were criticised after trying to put a positive spin on China’s air pollution problem. The Global Times newspaper said smog could be useful in military situations, as it could hinder the use of guided missiles, while state broadcaster CCTV listed five “unforeseen rewards” of smog, including helping Chinese people’s sense of humour.

Cyclists ride past the reflecting pool in front of the Lincoln Memorial in Washington...Cyclists ride past the reflecting pool in front of the Lincoln Memorial in Washington August 20, 2013. The Rev. Dr. Martin Luther King, Jr., delivered his "I have a Dream" speech on August 28, 1963 on the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom. This coming week, Washington will play host to an array of events marking the historic anniversary.  REUTERS/Kevin Lamarque

Kevin Lamarque/Reuters

Cyclists ride past the reflecting pool in front of the Lincoln Memorial in Washington The Rev. Dr. Martin Luther King, Jr., delivered his “I have a Dream” speech on August 28, 1963 on the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom. This coming week, Washington will play host to an array of events marking the historic anniversary