But while improved relations will certainly help after four years of what one analyst called Hurricane Donald, they will not be enough â because if the US and EU do now agree on the climate crisis, there are plenty of areas where they donât. Bidenâs early Trump rewinds (rejoining the Paris accord, dropping US opposition to a digital tax, seeking a return to the Iran nuclear deal, removing many tariffs on EU goods) have been greeted effusively in Europe as signs of normalisation. But analysts warn the US will need more than charm to secure concrete policy change in Europe on trade, energy or defence spending â and that the EU should not consider that American re-engagement means US priorities are aligned with Europeâs.