【推荐3】Ryan Hreljac is a boy living in Canada. Without his help, hundreds of wells that now provide fresh water for people in Africa, Central America and India might never have been built. Ryan is what you might call a water ambassador. He traveled the world to tell people how they can help solve a big problem: the lack of safe drinking water in many developing countries.

Ryan's efforts didn't begin in a far-off place, but right at home in Kemptville, Ontario. When he was 6 years old, Ryan learned from his teacher that children in Africa often must walk miles each day to find water. Some even die from drinking dirty water, his teacher said. So Ryan decided to act. He did chores for his parents and neighbors. He spoke to schools, churches, and clubs about his goal. The word spread. After several months of hard work, Ryan had raised $2,000, enough to dig one well.

An organization called Canadian Physicians for Aid and Relief（CPAR）chose a site for the well in the village of Agweo, in Uganda. Two years later, CPAR arranged for Ryan to visit Uganda for the opening ceremony of the well. Ryan met a new friend named Jimmy. Then they formed a close friendship. He often traveled with Ryan to explain how water changed his life.

After the first well, "the ripple effect took over," Ryan says, "and one goal led to another.” With adult help, he founded Ryan's Well Foundation to educate people about the importance of water. Now the foundation has raised more than $1.5 million and built 255 wells that serve more than 427,000 people in 12 countries. Ryan has received many awards but he isn't bragging（炫耀）. “The most impressive people I've met are the other kids who want to help too,” he says. "I'm just a typical kid. I had a small dream, and I stayed with it. That's the key reason why I made it come true. Everybody can do something.”

【推荐1】Rock climbing is not just for grown-ups. Your children can also enjoy this fun-filled activity as well as getting its advantages. Aside from its heart-health benefit, it is also known   to   increase   their   self-confidence   and   esteem(尊重).   While   it   may   not   be   an impromptu(即兴的) activity like running or biking, there are many climbing walls that are now available, especially with the development of fitness centers and camps.

The great thing about having your kids join these activities is that it follows up on their natural quality. As you know, children are natural climbers. You can see them going up on trees or climbing tall ladders. With rock climbing, you can satisfy their urges to be a climber.

What’s   more,   it is fairly easy for the kids compared with adults. With a high strength-to-weight rate, they have less body weight to pull up, and they are more flexible(灵活的).

It is also a low-impact workout that tests your children’s endurance(耐性). It’s easy on their joints(关节) as they burn energy during their ascent. In addition, climbing walls are like giant puzzles begging to be solved. Not only does it test the physical aspects of your children’s development, but it also wakes their mental abilities.

This exercise also helps develop your children’s essential strength and flexibility. Kids are challenged physically as they pull, lift, stretch, and twist their way up. This activity also develops their eye-hand coordination(协调) as they perform their climb.

Almost anyone can do it although it may vary in skill level, namely beginner, intermediate, or advanced. But despite its reputation as an extreme sport, children can do this. One does not need to be super-fit to join a rock climbing class. However, good technique is more necessary than strength when doing this sport.

【推荐2】Seasonal pumped hydropower storage（SPHS），an already established yet infrequently used technology ,could be an affordable and sustainable solution（解决方法）to store energy and water annually, according to new IIASA research published in the journal Nature Communications. Compared with other mature storage solutions, such as natural gas, the study shows that there is considerable potential for SPHS to provide highly competitive energy storage costs.

Seasonal pumped hydropower storage means pumping water into a deep storage reservoir（水库）, built parallel to a major river, during times of high water flow or low energy demand. When water is not enough or energy demand increases，stored water is then released from the reservoir to generate electricity.

The new study is the first to provide a global, high-resolution analysis of the potential and costs for SPHS technology. In their analysis, researchers assessed the theoretical global potential for storing energy and water seasonally with SPHS, focusing on the locations with the highest potential and lowest cost. They found that the technology would be particularly effective in the Himalayas, the Andes, Alps，and the Rocky Mountains, as well as mountainous regions in the Middle East, Brazil, Asia, and Russia, and many other locations around the world.

The study also addresses some of the potential environmental concerns related to hydropower. Because SPHS reservoirs are deep and constructed parallel to, rather than within the course of a river, the environmental and land use impacts can also be up to 10 to 50 times smaller than conventional hydropower plants.

Hunt, lead author of the study, says, “With the need for a change to a more sustainable world with lower CO2 emissions（排放），renewable energies and energy storage will play a major role in the near future. Given the vast untapped（未开发的）and cheap potential of SPHS, it will soon play an important role in storing energy and water on a yearly basis.”

【推荐3】Whistler Olympic Park, having hosted ski jumping, cross-country skiing and biathlon (冬季两项) for the Vancouver 2010 Olympic and Paralympic Winter Games, remains an active centre for competitors, the local community and visitors. Located a short drive south of Whistler, the park offers activities and programs all year-round.

Winter at Whistler Olympic Park

Discover Whistler Olympic Park through cross-country skiing, snowshoeing, biathlon and more.

Find yourself in the park’s fantastic landscape and discover its Olympic history.

Take a lesson such as ski jumping in the youth program.

Gather around the outdoor open fire or in the warm Day Lodge restaurant after a day out in the snow.

Summer at Whistler Olympic Park

Open daily for tours, self-guided activities and sightseeing from 9:30 a.m. to 4:30 p.m.

There is a small park access fee ($15/vehicle). This fee is for the benefit of local, national and international Nordic athletes for summer and winter training. Free park entry for 2020/2021 season pass holders and non-motorized vehicles.

Tours

Olympic Biathlon Tour

Feel like an Olympian with this hands-on introduction to biathlon! On your walk to the shooting range, learn about the park’s sports and history. It also provides the best angle for taking photos of the Olympic monuments.

Take aim and shoot a real gun! In a mini race, including walking and running, get your heart rate up, stay focused and take aim to hit the targets!

Tour Dates: Daily from June 28 – September 1, 2020

Ages: 8 and up (under 19 with an accompanying adult)

Pricing: Adult $55, Youth $45

E-Bike & Biathlon Adventure Tour

The comfortable electric assist mountain bikes have wide wheels for a smooth ride, and an electric motor to help you climb hills with ease.

Visit the Olympic monuments and enjoy breathtaking viewpoints, such as the Top of the World lookout with views of Black Tusk and surrounding mountain ranges.

Test your skills at the biathlon range, shooting at Olympic targets.

Tour Dates: Daily from June 28 – September 1, 2020

Ages: 10 and up (under 19 with an accompanying adult)

Pricing: $95 per person

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