Environmental Monitor

From February 2015 to November 2015 I was a freelance science writing intern for Fondriest Environmental's magazine Environmental Monitor, which covers technological advancements in monitoring systems for air and water quality in oceans, lakes, rivers and streams. Here you will find my entire collection of short briefs and longer form features written for the magazine. 

Calving Glaciers Ramped Up Tropical Wetland Methane Production During Last Ice Age

By Cassie Kelly, June 10, 2015

North American glaciers breaking off into the ocean during the last ice age led to a significant increase in methane emissions from tropical wetlands, according to Oregon State University.

Using an ice core from the West Antarctic Ice Sheet Divide Project, scientists determined that Heinrich events, in which large icebergs broke off into the North Atlantic, made the waters much cooler. This shifted the rain patterns toward the Southern Hemisphere.

According to Rachael Rhodes, lead author of the study, each Heinrich event would have made monsoon seasons to be longer and harsher in tropical regions, causing tropical wetlands to expand and methane production to ramp up.

They found that these changes between hemispheres would happen within a decade and last for up to 1,520 years following the event. This is an impressive example of how climate changes impact the entire planet, not just a single region.