About CO2 Australia

Invest in natural capital

We are a team of passionate and committed ecologists, environmental scientists, carbon project managers and field-based project officers.

We’re dedicated to supporting clients to participate in and benefit from the ever-changing carbon and ecosystem markets, through innovative and industry-leading approaches to environmental services.

We’re leading the carbon projects market in native regrowth and large-scale reforestation, from planting trees to generating carbon credits, but carbon is not all we do.

We provide professional expertise including environmental advisory services, land management and carbon services to clients ranging from governments to corporates to landholders.

Investing in your business shouldn’t cost the environment

We’re committed to actively supporting the integrity of our natural environment and ecological restoration. Explore our certifications and environmental, social and governance (ESG) initiatives.

Innovation to create value now and into the future

We provide advisory services across carbon feasibility studies and project implementation, compliance auditing, environmental legislation, offset establishment and management, and natural capital accounting.


We’re one of the few companies that can offer end-to-end ecological services. We manage biodiversity offsets through impact analysis, offset identification and assessment, preparation of strategies and legal documentation, and management and monitoring of offset areas.


Commercial solutions to manage carbon emissions now and into the future. We support businesses operating in emissions intensive industries to reduce carbon liabilities through assessing carbon project feasibility, cost-effective carbon credit offsets, carbon scheme compliance management, and data collection and reporting.


Training workshops for anyone wanting to strengthen or refresh their knowledge of Queensland vegetation identification and assessment, combining classroom-based theory and learning activities with practical application in the field.

Land management

We have contracted projects in restoration, regeneration, tree planting, soil and waterways care. As part of our carbon delivery services, CO2 Australia owns and manages a carbon estate, located primarily in central New South Wales. These properties combine agricultural activities with storage of carbon stocks and provide agistment opportunities for our regional neighbours. Contact us to find out more.

Talk to us about investing in natural capital

Contact us

Meet our team

  • All
  • Biodiversity
  • Carbon
  • Operations
Marcus is an experienced advisor with a demonstrated history of a broad range of commercialisation, innovation and government incentive programs. He brings considerable corporate experience, a highly developed acumen and extensive networks to the CO2 Australia team.

Dr Marcus Tierney

Chief Executive Officer
Tara has delivered thousands of hectares of biodiversity offsets for projects throughout QLD and has a strong understanding of state and federal environmental legislation. Her key areas of expertise include assessing ecological equivalence of impact and offset areas, identifying suitable offsets, quantifying offset availability and preparing EPBC Act Offsets Assessment Guides.

Tara D’Arcy-Evans

Head of Ecosystem Markets
Jarrad has over 25 years of experience in scientific research and environmental practice throughout Australia. His expertise is in terrestrial ecology and the design, delivery and ongoing monitoring of environmental offsets. Jarrad runs the exclusive Regional Ecosystem and BioCondition Assessment training for QLD, is an accredited BAM assessor in NSW and is an accredited Expert under the Accounting for Nature® Framework.

Dr Jarrad Cousin

Head of Ecology & Innovation
Tai has worked in ecological restoration since 2016, with expertise in all aspects of managing environmental projects and engaging with stakeholders. She manages CO2 Australia’s carbon advisory services and long-term carbon projects under the Emissions Reduction Fund. Tai is also Chair of CO2 Australia’s OHS Committee and Secretary of the Climate Active Committee.

Dr Tai Martin

Head of Carbon
As head of the geospatial team, Ryan manages CO2 Australia’s spatial project design, mapping, database management, remote sensing, monitoring and auditing. Ryan has over 15 years of working history in the GIS, spatial analytics and remote sensing fields, including Australian and international experience.

Ryan Campbell

Spatial Systems Administrator
Shane has 7 years’ experience delivering a wide range of environmental plantings across NSW and South-east QLD. As Operations Manager, Shane is responsible for overseeing Carbon Estate management and revegetation projects across Australia, as well as coordinating the field teams, ensuring data quality standards and OHS compliance, and supporting new project development.

Shane Allen

Operations Manager
Vanessa has over 25 years’ experience in natural area management and seedling propagation. Since 2015, she has been responsible for revegetation of almost 3000 hectares with more than 3 million seedlings across VIC, NSW and QLD. She engages with clients, First Nations people and groups, nurseries, landholders, contractors and community members for successful project delivery.

Vanessa Oxley

Propagation Coordinator
Carla has 15 years’ experience in environmental projects development and management and is responsible for fulfilling compliance requirements for ACCU Scheme projects. She also assists in the development and delivery of projects, offset reports, collation of data, procedures and carbon accounting programs. Carla is Chair of CO2 Australia’s RAP Committee.

Carla Costa

Carbon Farming Project Manager
Qurah has 15 years of Australian and international professional experience leveraging spatial technology and satellite data to achieve targeted outcomes. Her responsibilities include data processing and analysis, spatial dataset management and comprehensive support culminating in spatially and remotely sensed mapping outputs tailored for environmental solutions.

Qurah Fatima

Senior GIS Officer
Sarah has 17 years of experience in GIS and geospatial analytics with a background in environmental management. She provides support across both the Ecosystem Markets and Carbon Programs teams for mapping, analysis and management of geospatial data. Sarah also assists in the design of field-based ecological surveys and contributes technical geospatial support for new project development.

Sarah Worrall

Ecological GIS Analyst
With a background in environmental management and sustainable development, Jenna assists both the Ecosystem Markets and Carbon teams with project, contract and budget management, as well as contributes to development of new business opportunities. She also coordinates marketing and sustainability initiatives across the company and is Chair of CO2 Australia’s Climate Active Committee.

Jenna Kaney

Environmental Commerce & Sustainability Manager
Cath has 7 years’ experience in ecology, spanning a mix of research and industry. As a terrestrial ecologist, Cath’s expertise is in implementing and leading ecological surveys and services across a wide variety of ecosystems and projects, including habitat condition assessments, threatened flora and fauna surveys, Regional Ecosystem verification and GIS mapping.

Dr Catherine Bowler

Briana has almost 10 years’ experience in the environmental industry, primarily managing and delivering restoration projects across South-east QLD. Briana works with CO2 Australia’s Ecosystem Markets team contributing to on-the-ground and office-based management and delivery of environmental offset projects.

Briana Clifton

Anai is an experienced terrestrial ecologist with an interest in new technologies and innovative approaches to fauna surveying. Her expertise is in leading fauna and threatened species surveys, undertaking flora assessments, project management, logistics and compilation of reports. She is also a qualified UAV pilot.

Anai Fien

Bianca is an ecologist with more than 5 years’ experience working across multiple industries including construction, mining, gas, renewables and scientific research. During this time, she has developed a keen interest in conducting surveys involving ground-truthing Regional Ecosystems and ecological values including targeting threatened flora and fauna. Bianca also helps manage and deliver ecological projects.

Bianca Staker

Brianna has 2 years’ experience in flora and ecology, having previously worked at the QLD Herbarium and with qualifications in plant science. Brianna supports the Ecosystem Markets team in field work, data collection and analysis, and biodiversity offset project delivery.

Brianna Cronin

Junior Ecologist
Rory assists the Carbon Programs team with the implementation of projects under various methodologies in a range of ecosystems. He is also a licenced UAV pilot. Rory has a strong history in stakeholder engagement, having previously worked for the UNDP and has experience engaging with local and rural communities for hands-on environmental conservation activities.

Rory Mitra

Carbon Programs Officer
Samara comes from a technical background in ecological studies, bringing with her valuable experience in engaging with stakeholders from various backgrounds, including local communities and government agencies. She is a qualified UAV pilot, which, alongside her background in environmental consulting, contributes to a diverse skillset for CO2 Australia’s Carbon Programs operations.

Samara Honey

Carbon Programs Officer
With a background in local restoration, Rose now works to implement diverse plantation projects throughout QLD, predominantly under the Land Restoration Fund. Rose also works across both the Ecosystem Markets and Carbon Programs teams, assisting with biodiversity focused projects and data management.

Rose Easton

Environmental Project Officer
Jordan has over ten years of experience with CO2 Australia managing plantations across WA, as well as seven years’ previous experience working in agriculture. As a Project Officer, he is responsible for revegetation and vegetative inventory as well as property and firebreak management. Jordan assists the Carbon and Operations teams to deliver monitoring across a wide range of projects.

Jordan Hau

Project Officer, WA
With a background in sustainable agriculture, Megan brings experience in GIS mapping, plantation management, quality assurance and land care to the Operations team. Focused on the development and stewardship of the Carbon Estate, her role as a Project Officer involves the improvement of infrastructure, grazing, pest and fire management and building key stakeholder relationships.

Megan Harris

Project Officer, NSW
Todd has over 10 years of experience working various roles within local government, involving water quality monitoring and compliance, infrastructure maintenance and contract management. Growing up in a multigenerational farming family, he has a passion for agriculture and helping rural communities thrive. Todd’s focus is on managing the Carbon Estate and growing relationships with stakeholders.

Todd Porter

Project Officer, NSW
Georgia has previously worked in forestry and offsets, including surveys, mapping, inventory management, contractor liaison, ground maintenance, and weed, pest and fire management. She is passionate about the environment, cultural heritage and preservation of land, and has a certification in land management and conservation.

Georgia Bunce

Project Officer, NSW
Angela handles a variety of CO2 Australia’s administrative needs including management of estates, projects and contracts. Angela also provides financial assistance, handling invoicing and coordination of budget and asset management. Her role also extends to stakeholder liaison, and she is often the first point of contact for engagement with our organisation.

Angela Jerrick

Projects Administration Manager
Izzy has academic training in environmental management and provides support across both the Carbon Programs and Ecosystem Markets teams. This includes project research, development, implementation and monitoring through various carbon methodologies under the Emissions Reduction Fund and within a range of Australian ecosystems.

Isabella Annett

Project Support Officer

Reconciliation Action Plan

CO2 Australia acknowledges Traditional Owners and Custodians of Country throughout Australia and recognises their ongoing connection to lands, waters and communities. We pay our respects to Aboriginal and Torres Strait Islander Elders past and present.

As part of this, we’re excited to be developing a Reflect Reconciliation Action Plan (RAP) through Reconciliation Australia. Due in September 2024, our Reflect RAP will involve developing relationships with Aboriginal and Torres Strait Islander stakeholders, and further scoping our sphere of influence to meaningfully engage in reconciliation.