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Articles sur Volcanoes

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Mayotte’s surrounding coral reef is made up of three different structures more than 350 kilometers long. The lagoon they form is threatened by climate change and erosion. Axelspace

Restoring Mayotte’s lagoon: when a newly born volcano meets human resilience

Mayotte is no exception to the adage “small islands, big problems”. A newly born volcano combined with poor land management and accelerating climate change has put its fabled lagoon at risk.
This is an enhanced satellite image of Western Australia’s Great Sandy Desert. Yellow sand dunes cover the upper right, red splotches indicate burned areas, and other colours show different types of surface geology. USGS/Unsplash

These stunning satellite images look like abstract art – and they reveal much about our planet

The United States Geological Survey has a vast collection of satellite images capturing breathtaking geological features of our planet. As a geologist, I’ve picked eight of the most fascinating.
Salvatore Allegra / AP

How plate tectonics, mountains and deep-sea sediments have maintained Earth’s ‘Goldilocks’ climate

New modelling shows how tectonic plate movements, carbon-rich deep-sea sediment, and mountain weathering have regulated Earth’s climate.
Workers for the Tonga Geological Services look at the smoke poring from the eruption site. (Tonga Geological Services/Government of Tonga)

Canadian reconstruction aid to Tonga 40 years ago points the way today

In 1983, a Canadian group helped rebuild traditional cooking houses in Tonga in the aftermath of a devastating cyclone. The Tonga Kitchens project offers lessons for Canadian aid today.
Lava flows from a fissure in the aftermath of eruptions from the Kilauea volcano on Hawaii’s Big Island, May 22, 2018. Andrew Richard Hara/Ena Media Hawaii via Getty Images

Why can’t we throw all our trash into a volcano and burn it up?

Volcanoes might seem like nature’s incinerators, but using them to burn up trash would be dangerous and disrespectful to indigenous people who view them as sacred.
Fadli Taha (45 years old) with a photo of his family in front of his house which was buried by hot clouds from Mount Semeru in Sumberwuluh Village, Lumajang, East Java, Tuesday 7 December 2021. ANTARA FOTO/Zabur Karuru/foc.

Why did the early warning system fail to save the lives of residents around Mount Semeru?

To answer this question, it’s important to understand how PVMBG of the Ministry of Energy and Mineral Resources classify the physical events of Semeru and the corresponding alert level.

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