Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

.jp. That's y-A-K-U-L-T.C-O.jp. When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science.'m Christopher in Taliatta. Got a minute?

As you gather around the Christmas tree, consider the TLC you give O'Tanenbaum, plenty of water and a

relatively comfortable climate. Wouldn't want to dry out the tree after all. Now consider that in

the house we all live in, the planet, we're hardly giving the same courtesy to your Christmas tree's wild cousins,

who, I might add, are actually still alive.

As the planet warms, droughts are getting even drier, and they're getting hotter too.

In fact, it's getting so bad that researchers are now forecasting

that conifers in the arid southwestern United States

could be completely wiped out by the end of the century. No more pinion pines, ponderosa's, or junipers,

no more forests. It's definitely a distressing result for all of us. None of us want to see this happen.

It's a bummer, honestly. Sarah Rauscher, a climate scientist

and geographer at the University of Delaware. She and her colleagues gathered data on how real-world

evergreens in the southwest respond to drought and heat. They basically starve, unable to carry on

photosynthesis or transport water. The researchers then combine those physiological data

with a half dozen projections of how climate change might proceed.

But no matter what model we used, we always saw a tree death.

Specifically, 72% of the trees dead by 2050

...