Brown resigns as Greens leader

BOB Brown has resigned as leader of the Australian Greens.

Senator Brown, 67, informed colleagues of his decision at a party room meeting in Canberra this morning.

He will also resign from the Senate, after 16 years' service, when a replacement is available in June.

Senator Christine Milne will take the leadership after receiving unanimous party room support.

"I am sad to leave, but happy to go. It is good knowing that the Greens have such a depth of talent and experience lined up for leadership - I could only dream about that a decade ago," Senator Brown said in a statement.

"It is prime time to hand over the reins. I offer a huge 'thank you' to the 1.7 million Australian voters who elected our Green team, and to my nine colleagues: they have made each Green year in this parliament better than the year before - though the best is yet to come.

"For example, our policies for fairly taxing the resources boom and carbon polluters, uniquely enable the Greens to fund a National Disabilities Insurance Scheme, the Gonski education reforms, Denticare, renewable energy businesses, as well as progress on High Speed Rail linking our major cities.

"I look forward to fresh green pursuits including writing, photography, music, occasional talks, bushwalking, and getting out with Paul to see Miranda Gibson who has been perched for 120 days 60 metres high, in defence of a giant tree facing destruction in central Tasmania."