Guy Verhofstadt, the European Parliament's representative on Brexit, uploaded this video made by the Economist, in support of liberal policy in the EU. The video claims that populists favour domestic production over imported goods implying that liberals such as Guy do not favour domestic production. This is not true because the EU have for example banned US beef and have had tariffs on other non EU beef products for many years to protect EU farmers. But there is a bigger issue here. Guy is a strong advocate for a global climate policy :
There are signs that the EU will be lifting more tariffs on non EU trade in response to Trump and the populist movement. Recently, the EU signed a provisional trade deal with Mexico which is 5,000 miles away from Ireland. Countries like Mexico are not expected to meet it's greenhouse emission reductions targets so importing goods from these countries will also increase the carbon footprint there as well as globally (in the seas).
EU liberal policy will have the unintended consequence of driving global emissions up, not down negating the actions they take on climate here in Europe.