About

Emily Cassidy is an environmental scientist and science writer, with expertise in agriculture, climate change, and land use. She has published in scientific journals including Science, Nature, and Environmental Research Letters and her work has been featured in National Geographic, Vox, and NBC News.

In 2013, Emily led the publication of a groundbreaking paper, Redefining agricultural yields: from tonnes to people nourished per hectare, which estimated the number of people fed per hectare of cropland across the globe.

Emily is an accomplished science writer and is currently a contractor at NASA. In 2021, she was awarded a NASA Group Achievement Award for contributing to the NASA/ESA/JAXA COVID-19 Earth Observation Dashboard.

Emily earned bachelor’s and master’s degrees in natural resource science and management from the University of Minnesota.


Recent Work

  • How Nepal Regenerated Its Forests (February 2023) After relinquishing control of forests to the villages that depend on them, forest cover in this small mountainous country nearly doubled.
  • Breakthrough Agenda (September, 2022)
    The 2022 Breakthrough Agenda Report, led by the International Energy Agency (IEA), the International Renewable Energy Agency (IRENA) and the UN Climate Change High-Level Champions, focused on supporting stronger international collaboration to drive faster reductions in global greenhouse gas emissions. Emily led the agriculture sector chapter of the report, published in September 2022.
  • State of Climate Action 2022 (October, 2022)
    The State of Climate Action 2022 provides a comprehensive assessment of the gap in climate action by highlighting where recent progress must accelerate over the next decade across power, buildings, industry, transport, forests and land, food and agriculture, technological carbon removal, and finance. Emily co-authored the food and agriculture chapter.
  • Lasering In on Corn Fields (March 7, 2022) An instrument designed to measure tree height can also distinguish corn from other crops. NASA Earth Observatory.
  • Mapping Methane Emissions from Fossil Fuel Exploitation (January 25, 2022) Scientists track the sources of 97 million metric tons of methane emissions. NASA Earth Observatory.
  • Mapping Marine Microplastics (December 3, 2021) Researchers used satellite data to detect and track masses of plastic floating in the ocean. NASA Earth Observatory.
  • Zuiderzee Works (September 6, 2021) Where the Netherlands meets the North Sea, there is an impressive confluence of natural and man-made features. NASA Earth Observatory.
  • Birthplace of a Hidden Figure (August 26, 2021) Katherine Johnson rose above racial struggles to help America rise into space. NASA Earth Observatory.