in copenhagen at the weekend she called on politicians to enforce the paris climate agreement to tackle the climate crisis. i will have more on the conference in vienna with our environment correspondent in a moment but 1st a look at how one european country luxembourg is trying to reduce its emissions. another traffic jam in luxembourg a daily nuisance but the minister for mobility says this is going to change luxembourg is set to become the 1st country in the world to offer free use of on public transport nationwide by 2020 human i for fish we simply have to understand that a car is not always the ideal mode of transport in urban areas of course we have to offer people alternatives and that means we have to invest a lot more in the studio expanding the rail network alone will cost luxembourg around 2200000000 euros the goal is to make it possible to transfer to the tram bus or bike all electric of course in particular the idea is to get the 200000