These include the European Union’s climate and energy package for 2020 for signatories who have joined between 2008 and 2015 and the European Union’s 2030 climate and energy framework as well as the EU Strategy on Adaptation to Climate Change for signatories joining after 2015.

Make this lower case.
these include the european union’s climate and energy package for 2020 for signatories who have joined between 2008 and 2015 and the european union’s 2030 climate and energy framework as well as the eu strategy on adaptation to climate change for signatories joining after 2015.