Last week I visited Kew Gardens - mainly to see The Hive (the relocated British Pavilion from Milan Expo 2015). However, after walking through the Tropical House, the climate control systems started catching my eye. Systems in place that I could see included:

• Mist dispersers
  

• Automated windows
  

• Temperature & humidity sensors
  

• Air-tight doors
  

• Water features
  

The Alpine House had another system in place - what I assume was a solar shade.