To go with this week's readings by Thoreau, a short review of Richard Primack's Walden Warming: Climate Change Comes to Thoreau's Woods (2014), which documents the ways Thoreau's work can be read for evidence of global heating over the 170 years since it was first published -
https://www.newscientist.com/article/mg22229640-900-what-climate-change-has-done-to-waldens-woods/