Direct human influence of irrigation on atmospheric water vapour and climate

  title={Direct human influence of irrigation on atmospheric water vapour and climate},
  author={Olivi{\'e}r Boucher and Gunnar Myhre and Arne Myhre},
  journal={Climate Dynamics},
Abstract Human activity increases the atmospheric water vapour content in an indirect way through climate feedbacks. We conclude here that human activity also has a direct influence on the water vapour concentration through irrigation. In idealised simulations we estimate a global mean radiative forcing in the range of 0.03 to +0.1 Wm–2 due to the increase in water vapour from irrigation. However, because the water cycle is embodied in the climate system, irrigation has a more complex influence… Expand
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