The World Meteorological Organization (WMO) celebrates its 150th anniversary! Since 1873, the WMO - known back then as the International Meteorological Organization (IMO) - has provided "warnings of severe weather or water-related events, poor air quality, and long-term climate monitoring to help society be better prepared and protected." To mark this date, the Quai Wilson is hosting an exhibition of WMO's past and present achievements. The photography above was taken in Geneva at the Parc mon-repos in 1907. It is part of the exhibit that questions the visitors: "What was the highest temperature recorded in this location in August 1907?" 30. 9°C, 33.7°C or 41.1°C? You have until 30 August to discover the answer, Quai Wilson.