text: Research 
  
  **Cite this article:**Betts RA et al. 2018 Changes 
  in climate extremes, fresh water availability 
  and vulnerability to food insecurity projected 
  at 1.5°C and 2°C global warming with a 
  higher-resolution global climate model. Phil. 
  Trans. R. Soc. A**376**: 20160452. 
  http://dx.doi.org/10.1098/rsta.2016.0452 
  
  Accepted: 13 February 2018 
  
  One contribution of 20 to a theme issue ‘The 
  Paris Agreement: understanding the physical 
  and social challenges for a warming world of 
  1.5°C above pre-industrial levels’. 
  
  **Subject Areas:**
  climatology, hydrology 
  
  **Keywords:**
  1.5°C, Paris Agreement, 2°C, global climate 
  impacts, water resources, terrestrial 
  ecosystems 
  
  **Author for correspondence:**
  Richard A. Betts 
  e-mail: richard.betts@metoffice.gov.uk 