【推荐2】The biggest risk to UK forests over the next 50 years is a “catastrophic” collapse of their ecosystems, according to a group of experts. The group of 42 researchers were asked to identify the issues that would have the greatest impact on UK forests in the next half-century. The list was topped by “catastrophic forest ecosystem collapse”, the prospect of a number of risks, from droughts and floods to storms and pests. If action is not taken, the ecosystem will no longer function effectively.

This is the first “horizon scanning” exercise — a technique to identify relatively unknown threats, opportunities, and new trends — of UK forests. The aim is to help researchers, practitioners, policymakers, and society in general, better prepare for the future and address threats before they become critical.

Experts define such a collapse as a “sudden, long-lasting and widespread change in ecosystem state that has major negative impacts on biodiversity and key ecosystem services”. Those ecosystem services include clean air and water. Some species could be pushed to extinction. “Forest collapse will have significant short-and long-term influences on the forest, and wider environment, economy and society,” the researchers said.

The UK is one of the least forested countries in Europe, with 13 percent of land being forested, compared with a European average of 46 percent. The government has a UK tree-planting goal of 30,000 hectares by 2025, but is widely expected to miss it.

A spokesman for the Department for Environment said,“ We will continue to work with partners to tackle the challenges and opportunities raised in today’s report to ensure our trees and woodlands remain healthy, so they can support habitats and a range of wider environmental benefits.”

The Times revealed this year that more than 400,000 trees planted in England to make up for road projects had died since 2018. Experts think an increase in dry spring s and hot summers has made tree aftercare harder.

【推荐2】Young children who have experienced compassionate (有同情心的) love and empathy (认同感) from their mothers may be more willing to turn thoughts into action by being generous to others, a University of California, Davis’ study suggests.

In lab studies, children tested at ages 4 and 6 showed more willingness to give up the tokens (代金券) they had earned to fictional children in need when two conditions were present—if they showed bodily changes when given the opportunity to share and had experienced positive parenting that modeled such kindness. The study initially included 74 preschool-age children and their mothers. They were invited back two years later, resulting in 54 mother-child pairs whose behaviors and reactions were analyzed when the children were 6.

“At both ages, children with better physiological regulation and with mothers who expressed stronger compassionate love were likely to donate more of their earnings,” said Paul Hastings, UC Davis professor of psychology. “Compassionate mothers likely develop emotionally close relationships with their children while also providing an early example of satisfying the needs of others,” researchers said in the study, published in November in Frontiers in Psychology” Emotion Science.

In each lab exercise, after attaching a monitor to record children’s heart-rate activity, the examiner told the children they would be earning tokens for a variety of activities, and that the tokens could be turned in for a prize. The tokens were put into a box, and each child eventually earned 20 prize tokens. Then before the session ended, children were told they could donate all or part of their tokens to other children.

Taken together, the findings showed that children’s generosity is supported by the combination of their socialization experiences—their mothers’ compassionate love—and their physiological regulation, and that these work like “internal and external supports for the ability to act prosocially that build on each other”.

In addition to observing the children’s propensity (习性) to donate their game earnings, Hastings suggested that “being in a calmer state after sharing could reinforce (加强) the generous behavior that produced that good feeling.”

【推荐3】Businesses are finding more uses for Virtual Reality(VR) as the technology develops.

VR is no longer only for gaming or enjoyment. An American company called Blue Goji is using VR to improve one’s health by making exercise more fun.

Blue Goji has offices in Austin, the capital of Texas. The company showed its workout machine, called the Infinity treadmill (跑步机) at the recent South by Southwest festival. A person using the treadmill wears a virtual reality headset when exercising. Before starting, the user is connected to a belt to prevent falls. Then, the user plays a VR game while running on the machine. The game can transport the user into the virtual world, where he or she can be racing against virtual people.

The cost of the hardware and computer software program is $ 12,000.That is a lot of money for most people. But Kyra Constam of Blue Goji says the virtual reality treadmill is ideal for places where people go to exercise, like high-end gyms or recreation centers.

Recently, Leonardo Mattiazzi tested the Infinity treadmill. He thought the experience was surprisingly realistic. Mattiazzi said he had a strong feeling to actually get running and do something that pushed his limits. He said the experience was more interesting than running inside the gym without actually going anywhere.

Lots of VR experiences cause motion sickness because people are in motion during the game, but not moving in real life. But when the user is moving on the treadmill and in the game, the chances of motion sickness are reduced, Constam said.

After carefully studying the users’ experiences, Blue Goji plans to begin selling the Infinity treadmill to the public in 2019.