1 . In the summer of 2021, an unseasonal event took place. More than 100 miles of Florida’s coast around Tampa Bay became an oxygen-depleted (缺氧的) zone containing dead fish along the nearby shoreline.

Much of the conversation around our climate crisis highlights the emission of greenhouse gases and their effect on warming, sea-level rise and ocean acidification (海洋酸化). We hear little about the effect of climate change on oxygen levels, particularly in oceans and lakes. But water without adequate oxygen cannot support life. For the three billion people who depend on coastal fisheries for income, declining ocean oxygen levels are devastating.

As ocean and atmospheric scientists focus on climate, we believe that oceanic oxygen levels are the next big victim of global warming. To stop the situation from worsening, we need to expand our attention to include the dangerous state of oceanic oxygen levels — the life-support system of our planet. We need to accelerate ocean-based climate solutions that boost oxygen. Examples include nature-based solutions such as those discussed at the 2021 United Nations Climate Change Conference (COP26) held in Glasgow.

Enhanced monitoring of oxygen and the establishment of an oxygen-accounting system are a must. Putting oxygen into the climate story motivates us to do the work to understand the deep systemic changes happening in our complex atmospheric and oceanic systems. We celebrated the return of humpback whales in recent years to an increasingly clean New York Harbor and Hudson River. However, dead fish blocked the Hudson in the summer as warmer waters carried less oxygen.

Ecosystem changes connected to physical and chemical system-level data may point the way to new approaches to climate solutions. It includes an enhanced understanding of the life-support system of our planet. Roughly 40 percent of the world’s people depend on the ocean for their livelihoods. If we do not save marine life from oxygen starvation, we starve ourselves.

3 . Habitat improvement and a series of protective measures have played a crucial role in the rise of the population of Yunnan snub-nosed monkeys(滇金丝猴) , one of the planet’s most endangered animals.

The Yunnan snub-nosed monkey, also known as the black-and-white snub-nosed monkey, lives in high-altitude areas at more than 3,000 meters above sea level in Southwest China’s Yunnan province and the neighboring Xizang autonomous region. About 65 percent of its population inhabits the Baima Snow Mountain National Nature Reserve.

“Currently, the reserve is home to about 3,000 Yunnan snub-nosed monkeys,” said Lai Jiandong, head of the Wildlife Protection Station at the Baima reserve. When the reserve was first established in 1983, however, the population numbered a mere 800.

Lai stresses the continuous enhancement of management levels within the Baima reserve, including the adoption of cutting-edge technologies for monitoring and protecting not only the snub-nosed monkeys but also other endangered wildlife species.

“In recent years, using technologies like infrared(红外线) cameras, we have taken pictures of rare and endangered creatures such as leopards, jackals and sambar deer,” Lai noted, emphasizing the important role of such advancements in wild animal protection.

The primary duties of the Wildlife ProtectionStation involve the daily care of the snub-nosed monkeys in the Weixi Lisu autonomous county, as well as the sheltering and rescue of injured animals. “Over the past few years, we have provided assistance to more than 200 wild animals, including Yunnan snub-nosed monkeys, pandas and macaques,” said Lai.

The Yunnan snub-nosed monkey is under China’s national first-class protection and has been listed as an endangered species on the Red List of Threatened Species of the International Union for Conservation of Nature. They will be better protected.

5 . Have you ever seen your cat or dog eating grass? They do so because it can help their digestion, and many wild species use natural substances to prevent and control diseases. This is called “zoo pharmacognosy” or, more commonly, animal self-medication.

Scientists have discovered that tamarin monkeys use a specific tree resin (树脂) as medicine. In the Brazilian Atlantic Forest, scientists followed several groups of them to collect data. During one of these daily studies, tamarin monkeys were observed rubbing their bodies on the trunk of a tree. At first, researchers thought that they were marking their territory, a common behaviour in this species. Botanical experts later confirmed that the tree was a species of cabreuva, which is well known for its medical properties.

Researchers decided to place camera-traps in different sites at the foot of the tree to record future visits by tamarin monkeys. The records surprisingly showed that many animals living in the forest visited it. Totally, ten species were observed. For many of them, it was the first time that behaviors similar to self-medication had been observed. More surprisingly, one species spread resin on each other’s fur in pairs. In general, the species seemed to specifically visit the tree to acquire the resin and seemingly benefit from it, either healing their wounds or fighting back parasites (寄生虫).

While further studies are needed to identify the properties of the resin and thus confirm that this is indeed self-medication, the use of it suggests that cabreuva represents a common and universal drugstore for the residents of the Brazilian Atlantic Forest. It is likely to be a valuable resource helping the species maintain their magnitude by improving their health.

This discovery could have an important protection influence, as the disappearance of some trees could potentially affect the survival of some animals.

After spending Thanksgiving on Uncle Howard’s farm, he gave us two turkey eggs. My younger brother Chris was so excited that he nearly dropped his egg on the way home. Dad put the eggs under an old hen in our backyard. Every day Chris and I would check to see if they’d hatched yet. 26 days later, two little creatures waddled (摇摇摆摆地走) behind the hen. As they got older, one was dead. We named the other Timothy.

Timothy liked to wander in the woods and find tasty berries and weed seeds. Mom kept telling us not to get too attached to Timothy, because we were going to have him for Thanksgiving. But we never paid too much attention to what that really meant. One day, Dad gave Chris and me instructions. “I want you to start giving him corn along with his regular feed,” he said. “We want a nice fat bird for Thanksgiving.” After Dad walked away, Chris’s face began to pucker, just as he did before he started to cry.

“Don’t worry, Chris,” I said comfortingly. “We’ll save Timothy, somehow.”

“Why don’t we give him away?” Chris suggested.

“No.” I said. “If we do, he’ll just end up on someone else’s Thanksgiving table.” Suddenly I had an idea. “Hey, Chris, you know that small cave in the woods?” Chris nodded. “We can take Timothy there. We’ll cover the entrance with a wire net and hide him till Thanksgiving is over.” “Yeah!” We were so excited that we gave each other high-fives. We took Timothy out of his cage and left him in the cave with water and plenty of food. We piled branches over the opening to hide the entrance.

One day Dad sent us out to look for him. Both of us felt guilty, but we wanted to save Timothy’s life, so we kept quiet. Finally, Dad decided that a fox must have gotten him. That year Uncle Howard provided a turkey for our Thanksgiving dinner. The next day a big snowstorm hit. It was days before we could get out and see Timothy. When we got to the cave, we saw something had happened.

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The wire net was pulled away from the entrance, and Timothy was gone.

“Look at that！It’s Timothy！”Mom cried one day.

According to the World Meteorological (气候的) Organization, El Nino is a naturally occurring climate phenomenon. It starts with unusually warm surface water in the central and eastern equatorial Pacific Ocean,    1    then goes on to affect the weather worldwide. On average, it occurs every two to seven years, lasting 9 to 12    2    (month).

The center said the combination of El Nino and global warming would increase the chances of meteorological disasters     3    (cause) by extreme weather. The El Nino event is projected to cause sea surface temperature to peak between November 2023 and January 2024. Since May, an El Nino system    4    (build) up along the equator (赤道) in the eastern Pacific Ocean.

Research     5    (suggest) that every 1℃ increase in temperature in the equatorial eastern Pacific can raise the global annual average temperature by 0.12℃. A moderate or strong El Nino event     6    (usual) rises the global average surface temperature by about 0.1℃ to 0.22℃, the center added.

Speaking of the effect     7    China, the center said that an El Nino event tends to bring more rainfall to the southern regions and    8    (warm) temperatures in the north of the country. Since the 1990s, every El Nino event has been followed by two consecutive summers of above normal precipitation (降水) in China.

Jia Xiaolong, vice director of the center, said at     9    news conference in early November that statistics show that in the context of El Nino events, temperatures fluctuate greatly in winter, and the number of cold spells affecting China is often more than usual. The center recently released the climate trend forecast. It is expected    10    (face) snow disasters and increased demand for heating compared with the past, leading to temporary energy consumption peaks.

10 . For many people, visiting a wildlife park is a must-have bucket-list item. Few travel experiences can compare with watching wild animals wandering freely in wildlife reserves, enjoying their natural habitat. Here are some of the very best wildlife parks from all around the world.

1. Masai Mara National Reserve, Kenya

The Masai Marais located in the southwest of Kenya and is one of the most important and well-known wildlife conservation areas in the world. Covering an area of 1,510square kilometers, the Masai Mara National Reserve consists of the grasslands, mountain highlands, lakelands and valley.

Those looking for an unforgettable traditional wildlife park experience should look no further than the Masai Mara National Reserve. Famous for its natural diversity of animals, you can expect to see vast numbers of leopards, elephants and lions. The wildlife park is also home to over 450 bird species.

2. The Serengeti National Park, Tanzania

Listed as a UNESCO World Heritage Site, the Serengeti National Park is a land of beauty that is one of the last naturalistic wonders left on this planet. This wildlife park is the symbol of Africa, and also one of the world’s oldest ecosystems to ever exist. Located in the northern area of Tanzania, the Serengeti National Park has also been famous for the annual migration (迁徙) of wildlife to permanent waterholes.

During this phenomenon, you’ll get to see vast herds of zebras, buffaloes and elephants migrating to the waterholes due to the change of season, followed by predators(捕食者) on the hunt for them.

3. Tierra del Fuego National Park, Argentina

The Tierra del Fuego National Park, located at the southern tip of Argentina, is nestled between the Atlantic and Pacific Oceans, thus featuring a dynamic weather ecosystem with beech forests, mountains, waterfalls and glaciers (冰川). Not quite the image you may have in mind of a wildlife park being muddy, brownish and all dry landscapes.

It is a most breathtaking wildlife park, home to beautiful species such as eagles, rabbits and North American beavers. Aside from basking in the sightings of these wild animals, visitors to Tierra del Fuego often go hiking and fishing there.