Terence Chea

Associated Press

Extreme weather and supply chain disruptions have reduced supplies of both real and artificial trees this season. American shoppers should expect to have fewer choices and pay up to 30% more for both types this Christmas, industry officials say.

Christmas Tree Buyers Face Reduced Supplies, Higher Prices

Extreme weather and supply chain disruptions have reduced supplies of real and artificial trees.

This photo provided by Mighty Buildings shows a 3D-printed housing module being delivered. Most of the modules built by Mighty Buildings are assembled in the factory, transported by truck to the owner’s property, then put into place using a crane.

3D Printing's New Challenge: Solve the US Housing Shortage

It's faster, cheaper and more sustainable than traditional construction.

In this Oct. 4, 2019 photo, Eric Wente, chairman of Wente Vineyards, stands in vineyards at his family-run winery, which was founded by his great grandfather in 1883 in Livermore, CA.

Trade War Puts Cork in US Wine Sales to China

Caught in the crossfire of the trade war with China, U.S. vineyards risk losing their foothold in one of the world’s fastest-growing wine markets.

Wildfires Burn in Wine Country

The fire amid Sonoma County's vineyards and wineries has grown to 103 square miles.

A container at the Bodega Marine Lab in Bodega Bay, California holds hundreds of live purple urchins harvested from the Mendocino County coast where they have been decimating kelp forests. Tens of millions of voracious purple sea urchins that have already chomped their way through towering underwater kelp forests in California are now spreading north to Oregon.

Sea Urchin Spike Hurts Fisheries

The explosion of purple sea urchins is the latest symptom of a Pacific Northwest marine ecosystem that's out of whack.

Carlos Lama of Bayside Cafe, which was among businesses to lose power due to PG&E's public safety power shutoff, uses an LED lamp and light from his phone at the counter of the restaurant in Sausalito, Calif., Wednesday, Oct. 9, 2019. More than a million people in California were without electricity Wednesday as the state's largest utility pulled the plug to prevent a repeat of the past two years when windblown power lines sparked deadly wildfires that destroyed thousands of homes.

Millions Waiting for Electricity

PG&E has warned that they might have to do without power for days after the winds subside because "every inch" of the power system must be inspected.

Salmon Rebounds After Drought

The salmon rebound comes after three years of extremely low catches that resulted from poor ocean conditions and a five-year drought.

In this photo, Memphis Meats shows chicken produced in a laboratory from chicken cells. A growing number of startups worldwide are making cell-based or cultured meat that doesn't require slaughtering animals.

Startups Growing Meat in Labs Face Scrutiny

A report predicts that by 2040, cultured meat will make up 35 percent of meat consumed worldwide, while plant-based alternatives will compose 25 percent.

In this June 8, 2018 image taken from video, cows are milked at a dairy farm at the University of California, Davis, in Davis, Calif., where researchers are feeding seaweed to dairy cows in a bid to make cattle more climate-friendly. UC Davis is studying whether adding small amounts of seaweed to cattle feed can help reduce their emissions of methane, a potent greenhouse gas that's released when cattle burp, pass gas or make manure.

Researchers Reduce Emissions by Feeding Cows Seaweed

Can they make the cow more climate friendly?

Bichen Wu, center, and Ed Walker use a laptop to determine what a autonomous bulldozer is seeing at Built Robotics Wednesday, Feb. 21, 2018, in San Francisco. Backed by Silicon Valley money, tech startups are developing self-driving bulldozers, drones to inspect work sites and robot bricklayers that can lay bricks faster than human and work without lunch breaks.

Robots Enter Construction Industry

Former Google engineer turns dream of robot bricklayers into a reality.

Livestock are responsible for 14.5 percent of human-induced greenhouse gas emissions, with beef and dairy production accounting for the bulk of it, according to a 2013 United Nations report.

CA Targets Cows to Combat Warming

California is looking for ways to reduce methane from the bodily functions of cows, but critics are worried dairy farms will flee to other states with fewer regulations.

Julian Brown, right, talks with his mother Kristen during a meeting with Jena Daniels, a clinical research coordinator at The Wall Lab in Stanford, Calif., Wednesday, June 22, 2016. Like many autistic children, Brown, 10, has trouble reading emotions in people's faces, one of the biggest challenges for people with the neurological disorder. Now Brown is getting help from 'autism glass' - an experimental device that records and analyzes faces in real time and alerts him to the emotions they're expressing.

Google Glass Helps Autistic Children

'Autism glass' is an experimental device that records and analyzes faces in real time and alerts him to the emotions they're expressing.