Australian Greens Leader Bob Brown and mining spokesperson Larissa Waters will attend a rally in Dalby today to support Drew Hutton, President of the Lock the Gate Alliance, in his appearance before the Magistrates Court.

"I have known Drew for 30 years. He is a co-founder of the Australian Greens. His courage and integrity are formidable characteristics when lined up against this money-hungry, invasive coal seam gas industry," Senator Brown said.

Australian Greens Leader Bob Brown speaks to 774ABC's Jon Faine about the mining tax and the $100 million extra flowing to public services after the Greens clawed back the windfall for mining companies that resulted from MP Andrew Wilkie's MRRT deal with the Gillard government.

Other topics included today's Fairfax story about allegations about News Ltd and former Nationals senator Bill O'Chee and news that former Gunns chairman John Gay has been charged with insider trading.

Australian Greens Leader Bob Brown and Deputy Leader Christine Milne, flanked by other Greens senators, speak to reporters outside the Senate chamber immediately after the passage of the climate bills.

The Australian Greens are celebrating the historic Senate vote for world-leading legislation to tackle the global nemesis of climate change.

Australian Greens Leader Bob Brown congratulated Greens Deputy Leader Christine Milne and the Gillard government for giving Australia a real breakthrough in tackling that nemesis of climate change.

"People 50 years, or 500 years, from now will thank us for doing this," Senator Brown said.

Australian Greens Leader Senator Bob Brown appeared on ABC News Breakfast to discuss the political budget surplus, the Afghanistan conflict, dental care, preferencing of votes, and the Australian Greens National Conference.

Australian Greens Leader Bob Brown, Senator for Queensland Larissa Waters, Senators for Western Australia Rachel Siewert and Scott Ludlam, and Member for Melbourne Adam Bandt spoke to the media about the Australian Greens National Conference in Fremantle, WA.

Topics included the allocation of preferences, the environmental threats posed by developments in the Kimberley, and the Nationals' call for a "discussion paper" on coal seam gas. 

Australian Greens Leader Bob Brown and mining spokesperson Larissa Waters spoke to reporters in Canberra today about coal seam gas and water security. Other issues included Qantas, mining tax legislation, and Australia's vote against UNESCO's recognition of Palestine as an independent state.

Senator Waters will introduce a bill into the Senate today to protect the nation's water resources from mining, including coal seam gas.

The Senate today passed a motion moved by Australian Greens Leader Bob Brown that expressed concern over the Rena oil spill in New Zealand.

The motion reads as follows:

That the Senate

(a) requests that the President convey to the people of New Zealand (Aotearoa) the Senate's concerns about the oil spill and other consequences of the stranding of the container carrier ship Rena; and