Offsetting Myths: Land, Agriculture, and the Reality of Biodiversity Offset

By Thomas Key, Director at Earthtrade

Across Australia’s land management and development sectors, two persistent myths continue to cloud public understanding of biodiversity offsets. Addressing these misconceptions is essential if we are to balance environmental outcomes with economic and agricultural realities.

Myth 1: “There Isn’t Enough Land for Biodiversity Offsets”

This misconception often surfaces in response to large-scale development announcements — such as the national push to fast-track one million new homes — and the perceived trade-off between progress and environmental protection.

In truth, there is ample land available to support compliant biodiversity offsets. For example, within the Greater Brisbane region alone, there are extensive opportunities for strategically placed offsets that align with the Environment Protection and Biodiversity Conservation (EPBC) Act 1999 and its Environmental Offsets Policy.

However, it’s critical to recognise that offsets are location-specific. The approach used in South East Queensland will differ from that in Central or North Queensland, because each landscape has unique ecological, climatic, and land-use factors. Effective offsets must reflect what was originally there, what exists now, and what ecological restoration is realistically achievable under local conditions.

Ultimately, the limiting factor is rarely land availability — it’s economics. Offsetting is a science-driven process that also depends on sound financial planning and long-term management capacity.

Myth 2: “Offsets Tie Up Prime Agricultural Land”

Another common concern is that biodiversity offsets remove productive farmland from use. While it is true that some proponents have chosen to establish offsets on former agricultural land, this is uncommon and generally impractical.

Transforming a heavily grazed or managed pasture back to its natural ecological state is often a zero-sum game. The soil chemistry, hydrology, and microclimate are typically altered to favour pasture species, not native vegetation. As a result, achieving measurable ecological benefit — a key requirement under the EPBC Environmental Offsets Policy — is highly unlikely.

In regions like Central Queensland, where summer temperatures can exceed 45°C, even well-intentioned reforestation efforts struggle. No sapling, regardless of species, can thrive under such conditions without intensive and ongoing management.

That is why Earthtrade and similar specialists focus on ecologically appropriate, economically viable land for offsets — not prime agricultural areas. The goal is long-term biodiversity gain, not conflict with sustainable agriculture.

Understanding What Offsets Are — and Are Not

Much of the confusion stems from how offsets are conceptualised. Offsets are often mistakenly viewed as replacements — a like-for-like trade, where one habitat can simply substitute for another.

This is incorrect. An offset is a supplement or complement, not a replacement. It is designed to compensate for unavoidable environmental impacts by securing measurable conservation gains elsewhere, consistent with the EPBC Act’s “no net loss” principle.

In short:

An offset is an offset. It’s not a replacement.

When designed and managed properly, offsets form part of a broader environmental stewardship approach — one that recognises the economic, ecological, and cultural realities of the land.