Ontario Superior Court of Justice, Canada. A citizen's group opposed the demolition of a hospital in the City of Toronto. Among other reasons, the group argued that the Ontario Municipal Board had failed to adequately consider the issue of greenhouse gas emissions. The Court concluded that although CO2 emissions is an important environmental concern, the City and the Board had adequately considered the issue and correctly found the proposal to meet the requirements of section 24(1) of the Planning Act, R.S.O. 1990, c. P-13, as amended.