Ananlses of groundwater level trends in 170000 wells, impressive work and a start to analyse the status of our groundwater globally. The results are depressing but not surprising. Read more in this Nature article!
And for those who wanted a short swedish resumé, see SVTs summary: https://www.svt.se/nyheter/vetenskap/varldens-farskvatten-sinar-men-det-finns-ljusglimtar