Vines Swamp Southern Forests

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A new study in the southeastern U.S. suggests that increased vine growth is changing bottomland hardwood forests. Researchers from Ohio State University charting the growth of grapevines, trumpet vines, poison ivy, and Virginia creeper in two South Carolina forests found as much as a 10-fold increase in just two decades. As the vines increase, the density of small trees decreases, probably because most vines use adhesive roots or tendrils to climb trees. The reasons for the shift aren’t yet understood, but rising CO2 levels may be to blame &mdash since other studies suggest that vines such as poison ivy benefit more than trees from higher CO2 levels. . . Think of that itchy future: the Republican rash. JULIA WHITTY

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THE BIG PICTURE

You expect the big picture, and it's our job at Mother Jones to give it to you. And right now, so many of the troubles we face are the making not of a virus, but of the quest for profit, political or economic (and not just from the man in the White House who could have offered leadership and comfort but instead gave us bleach).

In "News Is Just Like Waste Management," we unpack what the coronavirus crisis has meant for journalism, including Mother Jones’, and how we can rise to the challenge. If you're able to, this is a critical moment to support our nonprofit journalism with a donation: We've scoured our budget and made the cuts we can without impairing our mission, and we hope to raise $400,000 from our community of online readers to help keep our big reporting projects going because this extraordinary pandemic-plus-election year is no time to pull back.

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