Greens Leader Richard Di Natale is marking the Queen's Birthday by setting out a 5-step path to allowing Australians to serve as our own heads of state.

"We are a mature, independent, confident nation and it's time to stand on our own two feet " Senator Di Natale said.

"It's on days like today that many Australians remember the failed republic referendum of 1999. The Greens have a clear plan to ensure history doesn't repeat itself.

I am devastated to hear of the horrific news of another violent and senseless shooting in the United States.

Our hearts are with the people of Florida and the LGBTI community.

I extend my deepest condolences for the families and loved ones of those tragically killed or injured.

Violence and hate have no place in our communities and now more than ever we must stand together against these hateful acts.

Richard Di Natale
Leader of the Australian Greens

The Australian Greens have welcomed the election being called today, saying Australians deserve better than the double-disappointment they're getting from the Liberal-National Coalition and Labor.

"Global warming, the unprecedented number of people seeking asylum around the world, inequality, transforming our economy: these are the challenges of our time and it's the Greens who are providing leadership," said Australian Greens Leader Richard Di Natale.

Greens Leader Richard Di Natale says it's time for Prime Minister Turnbull to articulate a timetable for Australia becoming a republic.

"There's never been a better time for Australia to become a republic," Senator Di Natale said.

"For the first time, all three federal political leaders are in favour of a republic, and with the state and territory leaders declaring their support, there's huge momentum.

"Malcolm Turnbull was the head of the Australian Republican Movement, so it's time for him to show leadership on the issue now that he's Prime Minister.

The Australian Greens have welcomed Malcolm Turnbull's departure from the divisive and aggressive language of Tony Abbott, calling on the new Prime Minister to match his words with his actions.

"I agree with the Prime Minister that as political leaders we must continue to champion multiculturalism and unite the community against this threat that feeds on division and fear," said Greens Leader Richard Di Natale.

"The change of rhetoric is welcome but it's important that the decisions of the Prime Minister reflect his words.

The Australian Greens have welcomed the Syrian refugees beginning to arrive under Australia's emergency intake, cautioning the world against lashing out in anger over the horrific attacks in Paris.

"A united Australian community is much stronger in helping to defeat these threats than one that's divided. Hate is the problem here, it's not the answer," said Greens Leader Richard Di Natale.

"As a community we need to recognise that the people seeking refuge in Australia are fleeing the kind of violence and barbarism that we've seen in Paris.

Australian Greens Leader Richard Di Natale has welcomed the abolition of knights and dames from the Order of Australia, but says Australians deserve so much more from their new Prime Minister.

"I'm pretty underwhelmed that Malcolm Turnbull's first big break from Tony Abbott is on the matter of honorifics," Senator Di Natale said.

Greens Leader Richard Di Natale expressed grave concerns today about the Abbott government's moves to revoke Australian citizenship.

"Australians can't afford a captain's call from Tony Abbott on citizenship. There has to be a debate about this," said Senator Di Natale.

"A strong leader understands that the job of the government is to protect the community, not threaten and frighten people.

"Tony Abbott must listen to more sensible voices within his Cabinet and recognise his approach frightens the community and does not make us safer.