1 . Greenhouse-gas emissions have produced the planet more than 1°C (1.8°F) warmer than it was in the pre-industrial days. Its atmosphere is producing heavy weather in ways both predicted and surprising. And, with emissions continuing, it will get worse.

Unfortunately, 2021 will probably be one of the 21st century’s coolest years. If temperatures rise by 3°C above pre-industrial levels in the coming decades — as they might even if everyone manages to honour today’s firm promises — large parts of the tropics risk becoming too hot for outdoor work. Coral reefs and the livelihood that depend on them will disappear and the Amazon rainforest will become a ghost of itself. Severe harvest failures will be commonplace. Ice sheets in Antarctica and Greenland will shrink (缩小) past the point of no return, promising sea rises measured not in millimetres, as today’s are, but in metres.

Six years ago, in Paris, the countries of the world committed themselves to avoiding the worst of that nightmare by removing greenhouse-gas emissions quickly enough to hold the temperature rise below 2°C. Their progress towards that end remains seriously inadequate. Yet even if their efforts increased dramatically enough to meet the 2°C goal, it would not stop forests from burning today; prairies (草原) would still dry out tomorrow, rivers break their banks and mountain glaciers disappear.

Cutting emissions is thus not enough. The world also urgently needs to invest in adapting to the changing climate. The good news is that adaptation makes political sense. People can clearly see the need for it. When a country invests in flood defenses, it benefits its own citizens above all others — there is no free-rider problem, as there could be for emissions reduction. So All the governments should make a broader move to increase investment in adaptation. More such efforts are vital.

3 . Latin America’s first renewable fuel-powered, trash-trapping wheel is cleaning one of Panama’s dirtiest rivers. A local environmental group led the effort.

The wheel is powered by water and sun energy. It pulls waste out of the Juan Diaz River. Most of the waste comes from the capital area of Panama City, where about 2 million people live. Thousands of kilograms of rubbish flow down the river into the ocean each year.

Robert Getman is the leader of the project. “Cleaning beaches is good,” he said, “but it is more effective and cheaper to trap rubbish in rivers because when it reaches the ocean, the environmental and economic cost becomes too high.”

The environmental group Marea Verde created the wheel, which is named Wanda Diaz, in late September. By the middle of October, Wanda had gathered 28. 6 cubic meters of plastic bottles from the water.

The Juan Diaz River is one of the most polluted in Panama. Waste systems in the area are poor, and land development is not well supervised. The river also passes through Panama City, one of Central America’s largest cities.

Over five years, Marea Verde projects have slowed the spread of rubbish along Panama’s rivers and coastline. Earlier, the group introduced its “Barrier or Trash”technology, a floating device. It caught more than 100 metric tons of waste in the Matias Hernandez River between 2019 and 2020.

“We want to raise awareness that we can prevent the death of this very important river,”said Marea Verde member Sandy Watemberg. She expressed her hope that the wheel will help. But she also pointed to the need for those who use single-use plastics to rethink their behavior. “The most important thing is to achieve a change in habits,” she said.

5 . Seth Magle is an urban ecologist in Chicago. In 2021, he started building a network of fellow urban animal lovers from around the world. They’re working to collect information so that it can be compared in different cities.

With the goal of trying to create more wildlife inclusive cities, the network helps reduce human wildlife conflict and increase human wildlife coexistence in the massively urbanizing areas.

In Chicago, Magle and his team have been watching their city’s wildlife for about 10 years. All together, they have over 100 camera traps set up across different types of urban environments from the downtown Loop and city parks to nature preserves and suburb golf courses.

During times of recent extreme heat, we do definitely see animals reduce movement and just stay where they are. It’s probably energetically difficult to move around when it’s so hot. Although this works for a short term in high temperature, it’s not ideal over a longer period because it means less time to search for food or a new mate.

As Magle and his network of urban researchers look toward the future and climate change, they predict bigger shifts. Temperatures everywhere are projected to warm, so wildlife in urban settings and beyond will likely have to shift their normal regions a bit further north to where it feels more comfortable and to what they’re already used to. We don’t have armadillos in Chicago, but we have them in the southern part of the state. And they seem to be migrating north.

Only time will tell how our urban wildlife reacts to these longer-term shifts in temperature.

For now, it sounds like urban animals — so long as they’re healthy — are totally capable of handling a few days of extreme heat here and there.

6 . Coming upon a clear - cut in an old forest is a shocking experience. Tees large and small are collapsed one above the other in pile, and the ground is covered with the tracks of heavy machinery. Such was the scene when forest activist Zack Porter and I hiked a newly built logging (伐木) road in Green Mountain National Forest.

Clear - cutting in the American forests has long been widespread. But now, the Forest Habitat Creation Project represents new reasoning which is hotly debated - that clear - cutting benefits native creatures. The thinking is that clear - cutting done wisely can mimic natural disturbances, for example, from insect invasions or from storms overturning older trees that produce what ecologists call Early Successional Habitats - places where young trees and bushes get the upper hand and animals that depend on such habitat thrive.

The project also states that forests “can only be saved by being destroyed” - by keeping them young. Timber (木材) interests are enthusiastic about the approach because it lets them profit from cutting trees while claiming the significance of conservation. Hunting groups favor it because a younger, less thick forest makes it easier to find the game and birds they're tracking.

Nevertheless, Porter says, “Allowing some of the oldest standing trees in New England to be removed is equal to dereliction of duty on the part of the government, who sees the forests as commodities (商品).” “Forests can produce clean water, clean air, carbon storage, and biodiversity that we need,” he continues as we walk among lovely mixed hardwoods and evergreens that are cut down for logging. “We shouldn't be removing them for short - term gain.”

In this sense, Zack Porter's description of logging for wildlife for short - term gain - the short - term gain of favoring habitat for species people today want to see and hunt - is reasonable.

8 . Climate activist Henry Emson told Euronews that when he became a father seven years ago, he was worried about his family’s effect on the environment. After doing some research, he found the best way to eliminate their carbon footprint was by planting giant sequoia trees(巨型红杉树).

Giant sequoias are ideal for capturing carbon dioxide because they continue to grow consistently for centuries, storing CO2 over time. General Sherman, the world’s largest sequoia tree, has stored an estimated 1,500 tons of CO2 in its trunk over the last 2,200 years and could live another 800 years. The average human could generate close to 1,000 tons of CO2 over their lifetime, so planting one giant sequoia could effectively reduce the carbon footprint of more than one person.

After realizing the power giant sequoias have to fight climate change, Emson devoted his life to planting thousands in the UK by creating the One Life One Tree project. Its final goal is to plant 100,000 giant sequoias in the UK by 2030, and according to The Mirror, as of March 2022, it has already planted 700. Trees are currently being planted near Abergavenny in Wales and the project is expanding to Devon, the Lake District and Scotland.

While the common assumption is that these giant trees can only be grown in Northern California, they actually do well in the UK at a time when the sequoia population is threatened back home.

According to One Tree One Life, 95% of the old-growth sequoia population has been logged over the past two centuries and what remains is under threat from climate change. “A 10 year＋ drought and temperature increase have greatly damaged the health of the trees. A secondary impact of the drought is making them increasingly susceptible(易受影响的)to insect attack and fire,” the site says.

Considering the danger that climate change is causing giant sequoias in California, Emson’s work also benefits these trees. “They’re like climate refugees(难民)—we help them with assisted migration,” he told Euronews.

9 . From the lush green hill you can see Ljubljana, the capital of Slovenia, in the distance. Populations of deer, rabbits and turtle live here. The air is stinky and the only signs that we are standing above a 24-metre (79 feet) deep landfill are the methane gas pipes rising from the grass.

Ljubljana is the first European capital to commit to going zero-waste. But fifteen years ago, all of its refuse went straight to landfill. “And that is expensive,” says Nina Sankovic of Voka Snaga, the city’s waste management company. “It takes up space and you’ re throwing away resources.”

So the city decided to change course.

It began in 2002 with separate collection of paper, glass and packaging in Roadside container stands. Four years later the city began collecting biodegradable waste door to door; separate collection of biowaste is set to become mandatory across Europe in 2023, but Ljubljana was nearly two decades ahead of the curve.

In 2013, every doorstep in the city received bins for packaging and paper waste. And, most controversially, scheduled collections of the residual waste were cut by half-forcing people to separate their rubbish more efficiently.

The results have been impressive. In 2008, the city recycled only 29.3% of its waste and was lagging behind the rest of Europe. Today that figure is 68%, and its landfill receives almost 80% less rubbish, putting it at the top of there cycling leader board of EU capitals. The Slovenian capital now produces only 115kg of residual waste per capital annually(the European city with the lowest figure is the much smaller Treviso, Italy, at 59kg).

10 . For more than 100 million years sea turtles (海龟) have covered huge distances across the world’s oceans, making them among the oldest creatures on the planet. However, they are on the list of endangered species.

Different from some animals like snakes, the sex of the baby sea turtles, called hatchlings, is determined by the environment after fertilization (受精). The temperature of the eggs during a certain period of development is the deciding factor in determining sex, and small changes in temperature can cause very big changes in the sex ratio (比例). Often, eggs at low temperatures (22—27℃) produce males, while eggs at higher temperatures (30℃ and above) produce females. At temperatures in between, both sexes will be produced. If temperature reaches 36℃, no hatchlings will be produced.

Climate change has a powerful effect on turtle nesting (筑巢) sites. It changes sand temperatures, which then affects the sex of the hatchlings. Scientists have found that unusually warm temperatures caused by climate change are upsetting the normal ratios, resulting in fewer male hatchlings. The past four hottest summers in Florida have seen only female sea turtles. And an Australian study has shown a similar effect in which 99% of the hatchlings are female.

In addition to rising temperatures, turtles are also facing the threat of too much plastic in the oceans, along with a number of other threats. “Plastic pollution is a problem for turtles as they can mistake plastics for food easily. Even a single piece of plastic can kill a turtle,” Dr Couper, working at the Queensland Museum, said. “We have collected some plastics taken from turtles’ stomachs to show people what kinds of things are showing up on beaches. I want it to be an eye opener.”