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Commit b0df0cbc authored by Hayley Corson-Dosch's avatar Hayley Corson-Dosch
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reprhase sea level rise stateemnt

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......@@ -33,7 +33,7 @@ export default {
title: "Fire in Ice",
motivation: {
paragraph1: "Glaciers and ice caps around the world are melting.",
paragraph2: "Glaciers serve as water towers that store freshwater that is essential for drinking water and agriculture. When glaciers melt, this freshwater is lost to the ocean, raising sea levels. Glacial retreat is occurring due to increased temperatures, water collecting under glaciers and hastening their movement, alterations in atmospheric circulation, and the deposition of dark aerosols on ice.",
paragraph2: "Glaciers serve as water towers that store freshwater that is essential for drinking water and agriculture. When glaciers melt, this freshwater is lost to the ocean, leading to sea level rise. Glacial retreat is occurring due to increased temperatures, water collecting under glaciers and hastening their movement, alterations in atmospheric circulation, and the deposition of dark aerosols on ice.",
paragraph3: "Dark aerosols absorb heat and can increase melting on glacier surfaces. Black carbon, or soot, is a type of dark aerosol that is produced by both industrial burning of fossil fuels and forest fires. Nagorski et al. (2019) determined that black carbon increases the amount of heat absorbed by the Juneau Icefield and accelerates the melting.",
paragraph4: "The Fire in Ice Project collected a series of ~10-meter snow cores across the Juneau Icefield, AK, which includes some of the most rapidly melting glaciers on the planet and is a major contributor to sea level rise. The goal was to determine if and how wildfire aerosols are affecting the Juneau Icefield by studying material preserved in the core layers.",
paragraph5: "Scientists analyzed the core for specific sugars (levoglucosan, mannosan, and galactosan) that are only produced by burning vegetation. These sugars are transported in smoke plumes alongside dark aerosols and are also deposited on the icefield. All three sugars were present in quantifiable amounts, demonstrating that wildfires are unequivocally depositing aerosols onto the icefield. Ratios between the sugars can provide information on the vegetation type—hardwoods or softwoods—that burned in the fires. The presence of hardwood fires, coupled with satellite data of smoke transport, suggests that fires as far away as East Asia may affect the Juneau Icefield."
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