SANAA, Yemen — In addition to the devastating human cost, the Yemeni capital Sanaa has lost 40% of its trees, green spaces and flowers since the beginning of the war in March 2015.
With an area of 390 square kilometers (150 square miles), Sanaa is home to around 2 million people as per unofficial 2010 estimates — the latest available — but an increase in population has been registered due to waves of internal displacement caused by the war.