Julian Marks

Julian Marks is a freelance geography writer. He holds an undergraduate degree in Geography and a M.Sc in Environmental Change And Climate Dynamics.
Strong winds blew across North and West Africa, picking up massive amounts of dust from the Sahara Desert and transporting it across the Atlantic Ocean as seen in this series of satellite imagery from NASA. captured March 26, March 27, March 28, and March 29, 2018. Image: NASA.

Geography of Saharan Dust: Where and How Does it Travel?

Julian Marks

The Saharan Desert is a massive generator of atmospheric dust, which is transported in massive quantities and deposited up to a few thousand kilometers away by large winds blowing over incredible distances.

The Milky Way above Lost Canyon in The Needles district, Canyonlands National Park. Photo: NPS/Emily Ogden.

Where to View the Milky Way in the United States

Julian Marks

Wilderness areas and national parks, particularly in the western half of the United States, are excellent places to observe the night sky.

On October 4, 2021 at 1:40 p.m. Western European Time, an astronaut aboard the International Space Station captured this image of the south end of La Palma showing ash plumes rising from the volcano.

Cumbre Vieja Volcano on La Palma Island

Julian Marks

Cumbre Vieja, a volcano on the island of La Palma, erupted again on September 19, 2021.

A cabin in a wildland-urban interface. Photo: Glacier National Park, National Park Service, public domain.

The Wildland-Urban Interface is Growing in the United States

Julian Marks

More people in the United States are moving from urban areas into more natural landscapes.

Image showing the change in the jet stream over the western U.S. during El Niño.

How El Niño and La Niña Affect Rain in the United States

Julian Marks

El Niño and La Niña are weather patterns that frequently have a considerable impact on the western and southwestern United States.

12 Next