Najat Saliba … A World Expert in Environmental Pollution

Najat Saliba … A World Expert in Environmental Pollution
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Najat Saliba … A World Expert in Environmental Pollution

Najat Saliba … A World Expert in Environmental Pollution

Najat Saliba, an atmospheric chemistry specialist and a top environmentalist, who was chosen by BBC to be in its list of 100 women in 2019, has inspired many Lebanese villages and towns to protect the environment.

In 2021, she launched the Environment Academy and carried out many projects in cooperation with municipal councils to resolve environmental problems.

Saliba said she has worked with the municipalities of Damour, Mazraat Yachouh, Salaata and others to resolve water related issues and garbage problems.

She has earned a Ph.D. (1999) from the University of Southern California and before that a M.Sc. (1994) from California State University, Long Beach.

“When I moved along with my parents from Damour to Beirut, I realized how nature interacts with people. So I started studying atmospheric chemistry,” she tells Asharq Al-Awsat.

“Studying chemical reactions in the atmosphere is very difficult … There are a lot of challenges,” she says.

When she returned from her studies in the United States, she realized how people were unaware of the pollution surrounding them. She also faced the challenge of convincing people to carry out her research and raise awareness on the problem.

Asked what it feels like to be on BBC’s list of 100 women in 2019, she told Asharq Al-Awsat: “It’s a confirmation of the responsibility I am assuming and shows that what I am doing is being followed up internationally.”

She called for putting women in the right jobs and giving them opportunities to have leadership positions.



Study: Earth's Satellites at Risk if Asteroid Smashes into Moon

A huge asteroid threatens the Moon (European Space Agency)
A huge asteroid threatens the Moon (European Space Agency)
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Study: Earth's Satellites at Risk if Asteroid Smashes into Moon

A huge asteroid threatens the Moon (European Space Agency)
A huge asteroid threatens the Moon (European Space Agency)

If a huge asteroid smashes into the Moon in 2032, the gigantic explosion would send debris streaming towards Earth that would threaten satellites and create a spectacular meteor shower, according to researchers.

Earlier this year there were briefly fears that the 60-meter-wide (200-foot-wide) asteroid called 2024 YR4, which is big enough to level a city, would strike Earth on December 22, 2032, according to AFP.

Subsequent observations from telescopes definitively ruled out a direct hit on Earth.

However, the odds that it will crash into the Moon have risen to 4.3%, according to data from the James Webb space telescope in May.

A new preprint study, which has not been peer-reviewed, is the first to estimate how such a collision could affect Earth.

It would be the largest asteroid to hit the Moon in around 5,000 years, lead study author Paul Wiegert of Canada's University of Western Ontario told AFP.

The impact would be “comparable to a large nuclear explosion in terms of the amount of energy released,” he added.

Up to 100 million kilograms of material would shoot out from the Moon's surface, according to a series of simulations run by the researchers.

If the asteroid hit the side of the Moon facing Earth -- which is roughly a 50% chance -- up to 10% of this debris could be pulled in by Earth's gravity over the following days, they said.

“A centimeter-sized rock travelling at tens of thousands of meters per second is a lot like a bullet,” Wiegert said.

In the days after the impact, there could be more than 1,000 times the normal number of meteors threatening Earth's satellites, he added.

Meanwhile, those of us on the ground would be treated to a “spectacular” meteor shower lighting up the night sky, the study said.