Australia’s environment showed improvement in 2025, marking the fifth straight year of better conditions. However, climate change is causing serious harm. The recent report from The Australian National University (ANU) found that marine ecosystems are under severe stress and that species are facing extinction at an alarming rate.
The number of threatened species in Australia has risen to 2,175, which is a 54% jump since 2000. In 2025 alone, 39 new species were added to the endangered list. Among concerning signs is the sea surface temperature around Australia, which hit a record high in 2025. This led to heat stress affecting 79% of monitored reefs, triggering a mass bleaching event on the Great Barrier Reef and contributing to a toxic algal bloom along South Australia’s coastline. This bloom harmed marine life and created health issues for beachgoers.
Professor Albert Van Dijk, the report’s lead author, noted that while rainfall improved soil and plant life across most of Australia, marine environments are still feeling the weight of climate change. “These extreme marine heat waves are like underwater Black Summer bushfires, leading to mass mortality events that are becoming more frequent,” he said.
In terms of overall scores, Australia’s environment received a 7.4 out of 10 in 2025. While Regions like Queensland thrived due to excellent rainfall, southern parts faced dry winters and declining scores. The historical context of these scores is stark; in 2019 and 2020, Australia scored as low as 0.4 out of 10 due to the devastating Black Summer bushfires.
The impacts of those bushfires still linger, accounting for over half of the newly threatened species since 2019. Notably, reptiles and frogs have seen drastic declines—88% and 67% respectively, since 2000. Mammals, on the other hand, have shown some stabilization due to improved rainfall and conservation efforts.
Despite the grim outlook, Professor Van Dijk remains hopeful. He argues that with significant cuts in emissions, Australia’s environment could still improve further. “The extinction crisis is real and worsening, but it’s not too late to take action,” he emphasizes. “Reducing emissions is essential to manage climate change and protect our ecosystems.”
The report uses satellite and field data to track the country’s environmental health. For a deeper exploration of these findings, you can read the full report at Australia’s Environment Report. According to recent statistics, managing climate change effectively remains a pressing challenge for the country.
In conclusion, while Australia’s environment might appear to be on an upward trend, the underlying pressures from climate change and human activity highlight the urgent need for action.

