Mark today moved a motion outlining the importance of urban trees and green open spaces and calling on the Government to prioritise the protection of existing urban trees and green open spaces and to develop a comprehensive urban forest plan for metropolitan Adelaide. The aim of the plan would be to create healthy and diverse urban forests across metropolitan Adelaide, and increase the average tree canopy to 30 per cent by 2045, particularly in those areas identified as being most vulnerable to heat stress.

Today Mark spoke about climate change and the abject failure of South Australia's planning system to deal with it.

Today Mark asked two Questions of the Treasurer regarding the proposed tax on electric vehicles.

Today, Mark brought his Greens' motion calling on members of the South Australian Parliament to uphold the integrity of our state legislation by opposing the federal government's plans for a nuclear waste dump at Kimba to a vote. It passed.

Today in Parliament, Mark spoke in support of this Private Member's Bill which would establish greater access to automated external defibrillators (AEDs). 

In Question Time today, Mark asked the Minister for Health whether South Australians returning from holiday in Tasmania will have to quarantine in South Australia after border restrictions are lifted on 26 October 2020.