Hubbard was inspired to work in science in an effort to develop insights and approaches important for sustaining the Earth.
[5] Between degrees, Hubbard worked as a geophysicist in industry and as a geologist at the United States Geological Survey in Menlo Park, California.
[8] In her leadership role as an associate director of Berkeley lab, Hubbard was committed to bolstering efforts to increase diversity and foster inclusion and respect for women and members of underrepresented minorities in the Earth and Environmental Sciences.
[16] These observations help to establish how permafrost impacts carbon cycles and the balance of energy in the polar regions of Earth.
Her viniculture is inspired by her understanding of geophysics, using experimental research to improve the yield of grapes whilst reducing the use of water and fertiliser.
[37][38][39] She has studied the wine of the Mila Family vineyard using soil-pit samples, ground-penetrating radar and neutron probe analysis.