Climate change is no longer an abstraction. I can literally see it at my front door. My figs ripened in October 2024, which has never happened before as it was never warm enough during that month. In ...

(a) Soil in central Iowa with dark, organic-matter-rich topsoil. Iowa's average topsoil depth decreased from 35-45 cm to 15-20 cm during the 20th century due to farming. (b) Severe gully erosion ...