【推荐1】Venom (毒液) from a local scorpion (蝎子) in Cuba is being used by Cuban scientists as an effective weapon to fight cancer. The venom, with stopping pain, anti-inflammatory (炎症) and anti-cancer properties, is the active ingredient in the medicine “Vidatox 30 CH which can be used to treat liver, brain, lung and other cancers. The treatment has been successfully used for more than four years in humans after being first tested in biological models. Labiofam, a Cuban laboratory, has breeding (繁殖) centers for both the Red Scorpion and Blue Scorpion. Each month, some 30,000 scorpions in Las Minas town, 270 km east of Havana are made to give the venom. After two years, the scorpions are released back into their natural habitat.

Denyer Sanchez, a biologist from Labiofam, explained that the conditions are adjusted for reproduction, proved by the high number of breeding female scorpions. He said when the offspring (后代) becomes able to live in the environment, we release them because they do not have the necessary size yet to remove their venom, said Sanchez. Sanchez also said that there is still much to research on the exploitation process of scorpions, such as female death rate or the ability to survive of the released scorpions.

Cuban research on the scorpion’s venom began at the end of 1980s in Guantanamo province, the island’s eastern tip, where a group of biologists and doctors became interested in the stories told by the peasants about the venom's benefits. However，the first discovery was made by Cuban biologist Misael Bordier. In 2001, Bordier visited Mexico’s National Autonomous University (UNAM) and presented the research progress in a professional journal. Bordier died in 2005, one year before Cuba’s Industrial Property Office gave Labiofam the rights to exploit the patent related to the venom.

【推荐2】“A lie can travel halfway around the world before the truth can get its boots (靴子) on.” said Mark Twain. In today’s Internet world of “fake (假的) news,” lies spread even faster and the truth is having trouble finding its boots.

To make matters worse, most young people get news from social media sites where facts are mixed with rumors (谣言), half-truths and complete lies. This has led to young people becoming confused. In the latest PISA, which tested 15-year-olds worldwide on academic subjects, fewer than one in ten of the examinees were reported to be able to recognize fact from opinion. A Stanford University study showed that students at all levels of education could not tell teal news from fake news. In one instance, 80 percent thought that a paid advertisement was a real news story.

Fake news is spread by people who have a prejudice (偏见). They want to influence public opinion either for or against something or someone. It is important, then, for young people to recognize when they are being used and to be doubtful about online information.

Traditional media, such as newspapers and television, are still the more credible sources of information. Reporters are professional trained to look for facts, and editors have the job of making sure those facts are correct. However, if you are getting most of your information online, you have to be your own editor. In that case, the first thing to do is to look at the writer of a post. Is this person known to be objective? Does the site where you read the post have a prejudice? Next, look for other sources from mainstream media to make sure the information. In other words, by putting on your truth boots you won’t be fooled into chasing lies.

【推荐3】Mountains of smoke and fire

Deep under the Earth’s surface, it’s so hot that even rock melts. Sometimes this molten rock, called “magma”, is pushed up to the surface.    1    And the opening or vent that lets the lava out is a volcano.

A volcano may explode violently, throwing out rocks for miles around.    2    Some volcanoes release clouds of poisonous gas or huge clouds of ash. Volcanoes can even do all these things underwater.

Most volcanoes have been around for a very long time. Many haven’t erupted for years and have cooled off. Volcanoes that are not going to erupt again are called “dead volcanoes”. Some volcanoes still give off smoke. These “sleeping volcanoes” may “wake up” one day and erupt again.     3     But one day in AD 79 it suddenly woke up. Its eruption threw out hot ash and rocky fragments (碎片) that buried the city of Pompeii. A hot mud-flow buried nearby Herculaneum. Because the remains are so well preserved, the area has been named a World Heritage site.

But not all volcanoes are destructive. When a volcano throws out vast amounts of lava and debris (岩屑), it piles up into a mountain.    4    

Other volcanoes help provide heat and energy. Many Icelandic homes get their hot water from springs heated by volcanic steam.    5     Plants grow very well in the rich soil left by volcanoes. And valuable gems, such as diamonds, can sometimes be found in the rocks that are thrown out by volcanoes.

【推荐2】As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.

That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.

But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.

One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.

“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”

Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.