Adam Bandt has been elected as the new Greens leader, following the shock resignation of Richard Di Natale.
Mr Bandt, who is the only Green MP in the House of Representatives, was elected unopposed to the position.
Queensland Senator Larissa Waters will remain co-deputy and will share the role with Tasmanian Senator Nick McKim.
Senator McKim defeated NSW Senator Mehreen Faruqi and South Australian Senator Sarah Hanson-Young for the co-deputy position.
Mr Bandt, who holds the inner-city electorate of Melbourne, thanked his colleagues for their support.
He used his first press conference as leader to promote what the party is calling a "New Green Deal" to invest in a clean economy and boost services to address inequality.
"I refuse to accept the dismal standard of this government, led by 'Scotty from marketing', whose love of coal has contributed to these fires that we are seeing at the moment, and the climate emergency we are facing.
"We are a smart and wealthy country, and if we have the guts to take on the big corporations and the weak politicians that they have in their pocket, we can solve these crises."
