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Please rewrite this article so an elementary-aged child could understand.

Scientists warn that, in 20 years time, humans may not be able to see a starry sky at night at all due to increasing light pollution.

British astronomer Martin Rees, while talking with The Guardian, said that light pollution conditions have "rapidly worsened" over the past few years, quite significantly since 2016 when astronomers reported that the Milky Way was no longer visible to a third of humanity.

According to Rees, the increasing use of light-emitting diodes (LED) and other forms of lighting is "brightening the night sky at a dramatic rate".

Rees said: "The night sky is part of our environment and it would be a major deprivation if the next generation never got to see it, just as it would be if they never saw a bird's nest."

He added: "You don't need to be an astronomer to care about this. I am not an ornithologist but if there were no songbirds in my garden, I'd feel impoverished."

In another citing, Christopher Kyba from the German Centre for Geosciences, said: "A child who is born in a place where 250 stars are currently visible in the night sky would be able to see only 100 by the time they reach the age of 18."
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Scientists warn that if we don't reduce light pollution in 20 years, people might not be able to see stars at night. The amount of man-made light is increasing and quickly brightening the night sky so that people can see fewer stars. In 2016, experts reported that a third of people on Earth could no longer see the Milky Way. It has only gotten worse since then.

According to scientists, LED lights are brightening the sky. It would be sad if the next generation of people did not get to see the stars in the night sky. If this continues, a child who could see 250 stars when they are born would only be able to see 100 by the time they are 18. 