Tag: get kids outside

Nearsightedness and Nature-Deficit Disorder

Why are 80% of kids in Singapore nearsighted? Perhaps it’s a nature-deficit disorder. 

Singapore has one of the highest rates of nearsightedness or myopia in the world, and parts of China and Taiwan are not far behind.

Most people assume it’s just genetics. 

And there’s certainly a lot of evidence suggesting a genetic link. In Australia, for example, if both parents have myopia, a child is eight times as likely to have it as well, and if both parents have severe myopia (at least -6 diopter), a child is 22 times as likely (Ip et al. 2007).

People of Chinese origins are particularly prone to myopia (Pan et al. 2012).

But here’s the Singapore twist. The city-state is a melting pot of Chinese, Indian and Malay ethnicities. Yet Singapore has a far higher myopia prevalence rate than India or Malaysia and a slightly higher rate than China.

Genetics almost certainly plays a role in myopia, but families generally share not only genes but also environments.

While our genetic DNA in “pen” and cannot be changed, some of our genes are written in “pencil” and can be rewritten by environmental factors.

Worldwide, there’s an urban-rural divide in myopia rates. In Nepal, for example, urban children age 15 have a 27% prevalence rate while it is less than 3% for rural children the same age (Pan et al. 2012).

So what’s different for many urban kids? 

Full Article

Notes from Silver Creek: Natural Born Scientists

It was a normal Sunday for us.  Mid-morning, we walked down to the creek to throw some rocks in the water and look for critters.

My boys were standing on the bridge, throwing stones, and I walked down the road to get them a few more rocks.  My five year old, Ben, said to me, “Mom, don’t go over there.”

I asked why and he said, “Because there is a bird asleep in that tree.”

I looked up and sure enough, a nighthawk was sound asleep on one of the horizontal branches.  I asked Ben how he knew it was there and he looked at me like I was not the smartest person in the world and said, “Because there’s a bunch of bird poop on the ground there.”

Watching my boys grow up on The Nature Conservancy’s Silver Creek Preserve in south-central Idaho–where I work as manager–I am amazed on a daily basis how much they notice. 

They know exactly where to find big spiders (“where there are lots of bugs, Mom”), the big black beetles (walking across the dry spots along the road, of course), the ladybugs (on that pokey green plant) and the frogs (where the banks hang over the water).

They have learned habitats simply by looking for the bugs and critters that live there.  Long before formal training, they have keen observational skills and know what questions to ask.

They are, in essence, highly effective little scientists.

Full Article


Forest Dilemmas

Too many deer. Logging one tree to save another. Beavers versus old growth. Welcome to forest conservation in the 21st century. Join us for a provocative 5-part series exploring the full complexity facing forest conservation in the eastern United States.

What is Cool Green Science?

noun 1. Blog where Nature Conservancy scientists, science writers and external experts discuss and debate how conservation can meet the challenges of a 9 billion + planet.

2. Blog with astonishing photos, videos and dispatches of Nature Conservancy science in the field.

3. Home of Weird Nature, The Cooler, Quick Study, Traveling Naturalist and other amazing features.

Cool Green Science is managed by Matt Miller, the Conservancy's deputy director for science communications, and edited by Bob Lalasz, its director of science communications. Email us your feedback.

Innovative Science

Investing in Seagrass
Marine scientists and fishers alike know that grass beds are valuable as nursery habitat. A new Conservancy-funded study puts a number to it.

Drones Aid Bird Conservation
How can California conservationists accurately count thousands of cranes? Enter a new tool in bird monitoring: the drone.

Creating a Climate-Smart Agriculture
Can farmers globally both adapt to and mitigate the impacts of climate change? A new paper answers with a definitive yes. But it won't be easy.

Latest Tweets from @nature_brains

Categories