Up to one thousand people have joined an anti-Adani rally in Sydney's west as part of a convoy travelling north to protest against the proposed Queensland coalmine.

The convoy, spearheaded by veteran conservationist Bob Brown, includes electric vehicles and 180 cars which stopped in Parramatta in Sydney's west on Saturday as part of its two-week campaign up Australia's east coast.

The Parramatta rally was attended by up to one thousand people ahead of the convoy's journey north to Coffs Harbour.

AAP

Mr Brown said the campaign had received a huge amount of support since it departed Tasmania on Wednesday.

The Greens party founder hopes the convoy will turn the upcoming federal election into a referendum on the Carmichael coal mine.

Stop Adani Convoy chants #StopAdani as it passes by Prime Ministers @ScottMorrisonMP press conference in Parramatta on health. He was standing still while we were on the move for a healthier future for our planet. #auspol #StopAdaniConvoy — Bob Brown (@BobBrownFndn) April 20, 2019

Greens at the #StopAdani Convoy – Brisbane Rally. On Monday 22 April 1pm Senator @larissawaters & QLD Greens will join @BobBrownFndn to rally in Queens Gardens & march to Adani's headquarters. Come along in your Greens t-shirts to show your support 💪https://t.co/G2fNY8YOR7 pic.twitter.com/OZrg55fbSD — Queensland Greens (@QldGreens) April 20, 2019

Joining the #StopAdaniConvoy today! We need to send a strong message to our politicians - we’re in a Climate Emergency and the #Adani coal mine is the exact opposite of what we should be doing #auspol #ClimateElection #ClimateEmergency pic.twitter.com/Qoy3pTttQ8 — Ellen Kirkwood (@Nelled) April 20, 2019

"People can decide whether they vote for Adani or for a renewable, clean future," Mr Brown told AAP on Saturday.

"It's a test whether humans can use their God-given brains to move to renewables."

AAP

The former Greens leader believes the climate will feature heavily on voters' minds when they head to the polls on 18 May given there's been a rise of interest in the issue.

"It's a resurgence that I haven't seen since the 80s," he said.

He insists people are appalled at the lack of action on climate change and urged voters to consider the future of the planet for the next generations.

AAP

Further protests will be held in Coffs Harbour, Brisbane and Hervey Bay as the convoy heads north to Queensland's Galilee Basin where the proposed coal mine would be located.

More than 800 people have signed up to join parts of the journey which will travel to Canberra on 5 May for a climate rally ahead of the election.