This week the US and China agreed to take significant steps to address climate change.
Their announcement, a wake-up call to other world leaders, comes in a week when the City's work to cut carbon emissions and tackle climate change was twice rewarded.
The City's Renewable Energy Master Plan has been recognised with a 2014 European Solar Prize for extraordinary accomplishments and significant contributions to the use and expansion of renewable energy.
This master plan details how 100 % of the City's electricity, heating and cooling requirements can come from renewable electricity and renewable gas sources by 2030. The Eurosolar awards ceremony will be held in Rome later this month, and the prize will be accepted on our behalf by Australia's Ambassador to Italy, former SA Premier Mike Rann.
On Tuesday night, the City of Sydney's Better Buildings Partnership (BBP) program was named "Innovator of the Year" at the 2014 Banksia Awards for environmental leadership and innovation.
The BBP sees the City working together with owners of 60% of the commercial office space in the city centre. Members of the Partnership having already reduced their emissions by 31% since 2005 and slashed their energy bills by more than $25 million.
On Tuesday I met with the CEOs of the Banksia Award-winning businesses to congratulate them on their success and discuss the challenges ahead for delivering the remaining reduction in emissions collectively committed to under our Sydney 2030 goals.
The scale of the challenge we face is too large to hold back and hope for the best. I'm thrilled to see businesses that understand the risks we face are getting on with the job. Coupled with our own efforts to reduce pollution, Sydney is setting an example for others to follow.