Global Change

Global change refers to planetary-scale changes in the Earth system.
More completely, the term “global change" encompasses: planetary scale changes to atmospheric circulation, ocean circulation, climate, the carbon cycle, the nitrogen cycle, the water cycle and other cycles, sea-ice changes, sea-level changes, food webs, biological diversity, pollution, health, fish stocks, and more.
Civilization is now a large driver of global change so the term includes population, the economy, resource use, energy, development, transport, communication, land use and land cover, urbanization, globalization.

Some Earth system changes, natural or driven by humans, can have significant consequences without involving changes in climate. Global change should not be confused with climate change; it is significantly more. indeed, climate change is part of this much larger challenge (IGBP, 2020).


International Geosphere Biosphere Programme (IGBP). 2020.…

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Interview with Prof. Hesham El-Askary

Prof. Hesham El-Askary works at Chapman University in the Earth Systems Science Data Solutions (ESsDs) lab. Here, he supervises students on the use of satellite earth observations for topics including agriculture, water resources, air quality and climate action, and makes use of Artificial Intelligence (AI) and Machine Learning (ML). Prof. El-Askary is researching natural and anthropogenic pollution’s influence on the environment and is particularly interested in the concept of “glocal” impact—how what’s happening globally in terms of climate affects us locally. He believes that one of the biggest challenges in implementing sustainable water management is the lack of data to monitor progress, and advocates for space technologies to mitigates this shortage.