Today Mark outlined the Greens' support for the Land Tax Bill, his disappointment at the level of misinformation about the Bill and the missed opportunity for broader tax reform, including the removal of stamp duty on residential property purchases. 

Today Mark moved to disallow the Government's Regulations that will lift the moratorium on growing GM crops on mainland SA from 1 December 2019. 

In Question Time, Mark asked the Minister for Human Services, representing the Minister for Environment and Water a question about the zoning of national parks.

Today Mark spoke about the significant contribution that Tauto Sansbury made to the Aboriginal Community.  He put Tauto's own words on the parliamentary record to farewell this important South Australian. 

In addition to his question to the Environment Minister in today's Question Time, Mark spoke about the incident in January this year, where a quantity of sulphuric acid was spilled or leaked from the Nyrstar facility at Port Pirie, polluting the marine environment and killing hundreds of fish. 

In Question Time today, Mark asked the Minister for Human Services, representing the Minister for Environment and Water, why details of the January pollution incident were not incorporated into the EPA's public register as legally required and what action the Minister will take to ensure that all future reports of actual or threatened serious or material environmental harm are incorporated into the public register.