Editor’s note: Paul Biasco first wrote about the Lake Texcoco Ecological Park for Ensia in early 2020. Here, the author revisits the park as it’s set to open to provide an update on the progress. It’s unusually dry in this former lake bed in the Valley of Mexico. It hasn’t rained in weeks, and typically temperate Mexico City is in the midst of a heat wave. Residents are planning for a “day zero” situation, with water shortages impacting nearly every part of the city. Iñaki E...