The phrase "outsized impact" means that something or someone has a much greater or bigger effect or influence compared to what is typical or expected. Full definition
It is certainly off to a very interesting start, and it seems clear that the topic merits that pursuit given the overweighted importance these stations have in the record, and in the general AGW theory of outsized impacts on the Arctic / Antarctic. (wattsupwiththat.com)
Lead study author Fernando Paolo, who conducted the research at the Scripps Institution of Oceanography and is currently based at NASA's Jet Propulsion Laboratory, unearthed the 1997 - 98 El Niño's outsized impact in West Antarctica while he was mining satellite records to look for short - term factors that impact the growth and thinning of ice shelves. (earther.com)
Similarly, designer and educational consultant David Jakes, a longtime acquaintance whom I consider the spiritual father of our program, has had a similar outsized impact on my thinking. (edutopia.org)