Complex sentence: In 2007, Goshen College President Jim Brenneman became a charter signatory to the American College & University Presidents Climate Commitment joining with leaders of 175 other higher education institutions that have agreed to neutralize greenhouse gas emissions on their campuses.
Split into simpler sentences: In 2007, Goshen College President Jim Brenneman became a charter signatory to the American College & University Presidents Climate Commitment. In doing so, Brenneman joined with leaders of 175 other higher education institutions that also have agreed to neutralize greenhouse gas emissions on their campuses.