====== Explanation of Key Trends - Ammonia ======

===== Obligations =====
Germany has made a commitment under the Gothenburg Protocol to reduce ammonia emissions. Since 2010, it is no longer permissible to exceed a National Emission Ceiling of 550kt NH₃ for Germany as whole. The revised Gothenburg Protocol and the revised NEC Directive both define emission reduction targets relative to a 2005 base year, mandating 5% (2020) and 29% (2030) reductions respectively.

While Germany's compliance with these obligations is not discussed here, further information on this subject can be found in [[general:projections:start|Chapter 9 - Projections]] and [[general:adjustments:start|Chapter 11 - Adjustments and Emission Ceiling Exceedance]].


===== Main drivers =====
The Main Drivers for NH₃ emissions are agricultural emissions from **Manure Management (NFR 4.B)** with 42% of total 1990 emissions and a 20% reduction between 1990-2019 and **Agricultural Soils (NFR 4.D)** with even 53% of total 1990 emissions and a 16% decrease between 1990-2018. The overall emission trend mainly follows the agricultural emissions closely with a total reduction of 18% between 1990 and 2019. The decrease of NH₃ emission in the year 1991 is due to a reduced livestock population that followed after the German reunification, while no explicit trend is discernible for the years up to 2016. Between 2016 and 2019 there is a slight reduction of about 8%, but it has to be seen how stable this trend will be.

__NH₃ Emissions 1990-2019__

^  Total Emissions (kt)                                                                                                          |||||||||||||^  Trend: latest compared to                                                        ||
^  1990                  ^  1995  ^  2000  ^  2005  ^  2010  ^  2011  ^  2012  ^  2013  ^  2014  ^  2015  ^  2016  ^  2017  ^  2018  ^  2019  ^  1990                                       ^  last years                          ^
|                    715 |    613 |    627 |    607 |    619 |    625 |    631 |    637 |    645 |    641 |    638 |    624 |    601 |    587 |  {{:general:trends:down_green.png}} -18.0%  |  {{:general:trends:down_green.png}}  |

[{{:general:trends:iir_nh3_trend.png?nolink&600|**NH₃ trend by sector**}}]