【推荐2】You don’t have to be a superhero to help the environment. Even small, simple actions can add up to big changes. People around the world, including kids, can work to help the earth at any time. Here are two stories about how kids are protecting the planet. Let them inspire you!

Raising Her Voice

Mari, 10, lives in Flint, Michigan. Since 2014, Flint residents have been without clean drinking water. That is when the water became polluted with lead (铅). As a result of lead poisoning, children in Flint have suffered from health problems.

“We knew that the water wasn’t good,” Mari said, “but we had no idea how bad it was and that it was making us sick.” Mari has worked hard to spread the awareness of Flint’s water crisis by organizing fundraisers (筹款人) and other events. In 2016, she inspired the president Barack Obama to visit her hometown. “Never let anyone tell you that your voice doesn’t matter,” Mari says. “It may not always be easy, but you will find adults who support you and want to hear what you have to say.”

Ryan Recycles

At the age of 3, Ryan Hickman began an activity to clean up the environment — one can and bottle at a time. That was in 2012, when Ryan went with his dad to a recycling center near his home in California; the experience motivated Ryan. The next day, he began collecting recyclables from neighbors. Soon, Ryan’s Recycling Company was born. “Recycling keeps bottles and cans out of the ocean,” Ryan, now 8, said, “so animals don’t get sick from them and die.”

So far, Ryan has helped customers recycle 320,000 plastic and glass bottles and aluminum (铝) cans. He has also donated nearly $6,000 to the Pacific Marine Mammal Center.

【推荐1】A teenager of 17 walks into a corner store and grabs a Coca-Cola, but the cashier refuses to sell it to him because he is underage. That rule is expected to soon become reality in parts of Mexico, as lawmakers in several states push legislation (立法)to keep junk food away from children. know it can sound a bit difficult but we have to take action now," says Lopez, a lawmaker in Oaxaca's Congress.

More than 70,000 Mexicans have died from COVID-19, the world's fourth-highest recorded death toll, tracked by Johns Hopkins University. 89% of those who died in Mexico had an underlying medical condition such as obesity, diabetes (糖尿病)，high blood pressure and heart problems. That has led to a new urgency to change diets so that the younger generation doesn't suffer those illnesses.

The critics, however, say the leaders are using preexisting health conditions in COVID-19 patients to distract from a weak government response to the virus outbreak. Yet few people would deny that the country consumes large amounts of sugar-sweetened drinks and processed snacks with little nutrition --- or that Mexico has a major weight problem.

Oaxaca's governor approved the state's junk food prohibition last week. Legislators still have to complete the legal systems, and punishment could include fines and even jail. Lopez says legislators from all over the country have called her for advice. Many other states are debating a junk food ban. However, a nationwide law would not be easy. "There are powerful commercial interests that least want it to happen, but we must prioritize the well-being of our children,"   Lopez says.

【推荐2】Some places in the world have strange laws. It's important for you to know about them before going there.

Whoever likes to chew gum (口香糖) may have to leave Singapore. The government really wants to keep the city clean and will fine you for chewing gum.

Before you leave for the United Arab Emirates, you'd better make sure you aren’t visiting during Ramadan (斋月). During that time you aren’t allowed to eat or drink in public. Tourists have been fined up to $275 for drinking in public.

In Thailand it's against the law to drive a car or motorcycle without a shirt on, no matter how hot it is. Punishments are different in different areas and can include warnings and tickets costing about $10. No joke--the local police will stop you.

Studies in Denmark have shown that cars with their headlights on are more noticeable by other drivers than those with their headlights off. Drivers there are required to leave their headlights on even during the day, or they may face a fine up to $100.

Make sure you know about these laws before your next trip. Better safe than sorry.

【推荐2】It’s true that quite a few most respected scientific authorities have confirmed that the world is becoming hotter and hotter. There’s also strong evidence that humans are contributing to the warming. Countless recent reports have proved the same thing. For instance, a 2010 summary about the climate science by the Royal Society noted that: The global warming over the last half-century has been caused mainly by human activity.

You may not believe that humans could change the planet’s climate, but the basic science is well understood. Each year, billions of tons of greenhouse gases are released into the atmosphere because of human activity. As has been known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.

Of course, the earth’s climate has always been changing due to “natural” factors such as volcanic eruption or changes in solar, or cycles concerning the Earth’s going around the sun. According to the scientific research, however, the warming observed by now matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere — not the warming we would expect from other possible causes.

Even if scientists did discover another reasonable explanation for the warming recorded so far, that would give birth to a difficult question. As Robert Henson puts it: “If some newly discovered factor is to blame for the climate change, then why aren’t carbon dioxide and the other greenhouse gases producing the warming that basic physics tells us they should be?”

The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths — one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.

【推荐3】Hardware in general, and smartphones in particular, have become a huge environmental and health problem in the Global South’s landfill sites (垃圾填埋场).

Electronic waste (e-waste) currently takes up 5 percent of all global waste, and it is set to increase rapidly as more of us own more than one smartphone, laptop and power bank. They end up in places like Agbogbloshie on the outskirts (郊区) of Ghana’s capital, Accra. It is the biggest e-waste dump in the world, where 10,000 informal workers walk through tons of abandoned goods as part of an informal recycling process. They risk their health searching for the precious metals that are found in abandoned smartphones.

But Agbogbloshie legally should not exist. The Basel Convention, a 1989 treaty, aims to prevent developed nations from unauthorized dumping of e-waste in less developed countries. The e-waste industry, however, circumvents regulation by exporting e-waste labelled as “secondhand goods” to poor countries like Ghana, knowing full well that it is heading for a landfill site.

A recent report found Agbogbloshie contained some of the most dangerous chemicals. This is not surprising: smart phones contain chemicals like mercury, lead and even arsenic. Reportedly, one egg from a free-range chicken in Agbogbloshie contained a certain chemical which can cause cancer and damage the immune system at a level that’s about 220 times greater than a limit set by the European Food Safety Authority (EFSA). Most worryingly, these poisonous chemicals are free to pollute the broader soil and water system. This should concern us all, since some of Ghana’s top exports are cocoa and nuts.

Some governments have started to take responsibility for their consumers’ waste. For example Germany has started a project that includes a sustainable recycling system at Agbogbloshie, along with a health clinic for workers. However, governments cannot solve the problem alone, as there is an almost limitless consumer demand for hardware, especially when governments’ green policies are focused on issues like climate change.

Only the manufacturers can fix this. A more economically sustainable and politically possible solution is through encouraging hardware manufacturers to make the repair, reuse and recycling of hardware profitable, or at least cost-neutral.

【推荐1】A remarkable variety of insects live on this planet. More species of insects exist than all other animal species together. Insects have survived on earth for more than 300 million years，and may possess the ability to survive for millions more.

Insects can be found almost everywhere—on the highest mountains and on the bottom of rushing streams, in the cold South Pole and in bubbling hot springs. They dig through the ground, jump and sing in the trees, and run and dance in the air. They come in many different colors and various shapes. Insects are extremely useful to humans, pollinating (授粉) our crops as well as flowers in meadows, forests, deserts and other areas. But ticks and some insects, such as mosquitoes and fleas, can transmit disease.

There are many reasons why insects are so successful at surviving. Their amazing ability to adapt permits them to live in extreme ranges of temperatures and environments. The one place they have not yet been found to any major extent is in the open oceans. Insects can survive on a wide range of natural and artificial foods—paint, pepper, glue, books, grain, cotton, other insects, plants and animals. Because they are small, they can hide in tiny spaces.

A strong, hard but flexible shell covers their soft organs and is resistant to chemicals, water and physical impact. Their wings give them the option of flying away from dangerous situations or toward food or mates. Also, insects have an enormous reproductive capacity: An African ant queen can lay as many as 43,000 eggs a day.

Another reason for their success is the strategy of protective color. An insect may be right before our eyes, but nearly invisible because it is cleverly disguised like a green leaf, lump of brown soil, gray lichen (青苔), a seed or some other natural object. Some insects use bright, bold colors to send warning signals that they taste bad, sting or are poisonous. Others have wing patterns that look like the eyes of a huge predator, confusing their enemies. Some insects also imitate bitter-tasting insects; hungry enemies are fooled into avoiding them.

【推荐2】Parents who have books in the home increase the level of education their children will attain(获得), whether rich or poor, according to a 20-year study led by Mariah Evans.

For years, educators have thought the strongest predictor(预示物) of attaining high levels of education was having parents who were highly educated. But, the study showed that the difference between being raised in a bookless home compared to being raised in a home with a 500-book library has as great an effect on the level of education a child will attain as the difference between having parents who are barely literate (有文化的) and having parents who have a university education.

Being a sociologist, Evans was particularly interested to find that children of less-educated parents benefit the most from having books in the home. What kinds of investments should we make to help these kids get ahead? The results of this study indicate that getting some books into their homes is an inexpensive way that we can help these children succeed. Evans said, “Even a little bit goes a long way. Having as few as 20 books in the home still has a significant impact on motivating a child to a higher level of education, and the more books you add, the greater benefit the children get.”

The researchers were struck by the strong effect having books in the home had on children's educational attainment even above and beyond such factors as education level of the parents, the father's occupation or the economic level of the country.

Having books in the home is twice as important as the father's education level, and more important than whether a child was brought up in a developing country or a developed country. Surprisingly, the difference in educational attainment for children born in a developed country and children born in a developing country was just 2 years, less than two-thirds of the effect that having 500 or more books in the home had on children.