European critical loads: database, biodiversity and ecosystems at risk Approximately 79 percent of the nature reserves (Natura 2000 areas) in EU countries are estimated to be exposed to an excess of nitrogen deposition in 2020.
Without measures emissions of HFC greenhouse gases will increase rapidly Without global agreement on the use of HFCs, their contribution to the greenhouse effect may increase sharply to 10 percent of that of CO2 by 2050. The current contribution is less than 1 percent.