Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s

Geneva, May 18 - Greenhouse gas concentrations, sea level rise, ocean heat and ocean acidification -- the four key climate change indicators -- s