England has its driest July in almost 90 years as Europe swelters through historic heat waves

London — The parks of England, usually lush with green grass, have turned yellow. Even the spot known as the source of the mighty River Thames has dried up for the first time in decades.

The U.K. has experienced months of low rainfall and high temperatures. Last month was the driest July recorded in England in almost 90 years, since 1935.

The British government's environmental agency has warned that if the dry conditions continue, "many parts of England will move into drought."