Grethel Aguilar is the Director General of the International Union for Conservation of Nature (IUCN)
Climate change is not just a crisis of rising temperatures—it is a crisis for humanity and nature alike. By failing to act on climate change, states are gravely undermining the human rights of vulnerable communities.
But apart from the devastating direct impacts, climate change also threatens nature, and consequently also the services that nature provides people with. Climate and nature are deeply interlinked, and these links cannot be overlooked in global action to address the climate crisis.
Today, we represented IUCN and we backed numerous other experts and organisations in arguing before the International Court of Justice in The Hague that countries have a binding legal responsibility to fight climate change. But uniquely, as the global authority on the state of nature, we also highlighted the impacts of climate change on the natural world – and the need to consider nature in climate action.
The climate crisis is also a biodiversity crisis. Climate change alters ecosystems in a myriad of ways, and at the same time the loss of nature is fuelling the extent and impact of climate change globally. One cannot be addressed successfully without the other.
As ecosystems shift and species are pushed to extremes, the natural world—on which we all depend—is under immense pressure. Yet, hope lies in recognizing the deep interconnection between nature and climate action. By restoring forests, protecting coral reefs, safeguarding soil health, and conserving vital habitats, we not only protect biodiversity but also strengthen nature’s ability to buffer us against climate impacts.
Big emitters accused of hiding behind climate treaties in international hearing
Today, we used our unique expertise to tell the court that nations need to take responsibility for climate change – but this cannot be realised if nature is overlooked.
As others like Vanuatu have argued, in failing to act on climate, states are undermining the human rights of vulnerable communities – particularly the right to life, health, housing and culture. By failing to reign in climate change, states are also undermining nature’s ability to provide communities with food, fisheries, productive farmland, and other services – impacting lives and livelihoods.
For millions—herders, farmers, fishers, and Indigenous peoples—nature is more than a resource; it is a lifeline. They will suffer the most from our inaction. Climate change is already affecting nature, and the impacts are escalating. For example, climate change and severe weather are a threat to 7,412 species (16%) on the IUCN Red List, including 19% of freshwater fishes and 44% of reef-building corals – two species groups that are integral to the lives of millions across the world.
Similarly, degraded land impacts 3.2 billion people, leaving communities more vulnerable to droughts that are increasing in severity and frequency – depriving them of the basic rights of access to food and water.
Over a billion people are estimated to benefit from coral reefs in some form, for instance, for food, income, and protection. As a Union that includes Indigenous peoples’ organisations as well as states and civil society, IUCN is well placed to speak out on this. This is an additional reason why action on climate must be a legal obligation for states, and why a failure to act should entail legal consequences.
The desertification (UNCCD) COP in Saudi Arabia just heard how up to 40% of the Earth’s land is degraded, impacting 3.2 billion people, including the world’s most vulnerable communities. These trends are compounded by biodiversity loss and declines in soil health as well as climate change, both of which contribute to the impacts of droughts – which are increasing in severity, frequency, and intensity. Some estimates suggesting that three quarters of the global population could be affected by 2050.
We know that action to limit climate change requires a just and inclusive transition to a low-carbon future via significant renewable energy development.
Here, too, climate and nature are connected. While a just and speedy transition to renewables is an absolute priority, biodiversity must also be considered in humans’ responses to climate change. For example, the energy transition entails changing land use – such as planting biofuels – and building energy infrastructure such as wind turbines and dams. Nature must be factored in and protected in the midst of these changes – when planning biofuel projects or energy infrastructure – to ensure that these responses do not impact ecosystems and species negatively.
Let us remember that the link between climate and nature is two-way – climate change threatens nature but failing to protect forests, grasslands, coral reefs, seagrass meadows and other ecosystems also worsens climate change, and leaves communities more vulnerable to its impacts. Nature is a crucial ally in the fight against the climate crisis, and we simply cannot afford to overlook it.
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ICJ climate justice proceedings must recognise links between climate and nature
Climate Change
North Carolina Regulators Nix $1.2 Billion Federal Proposal to Dredge Wilmington Harbor
U.S. Army Corps of Engineers failed to explain how it would mitigate environmental harms, including PFAS contamination.
The U.S. Army Corps of Engineers can’t dredge 28 miles of the Wilmington Harbor as planned, after North Carolina environmental regulators determined the billion-dollar proposal would be inconsistent with the state’s coastal management policies.
North Carolina Regulators Nix $1.2 Billion Federal Proposal to Dredge Wilmington Harbor
Australia has some of the largest areas of high volume, consistent solar and wind energy anywhere in the world. It is a natural advantage that many countries in our region and across Europe will envy as they ramp up their efforts to reduce carbon pollution.
Australia has an amazing opportunity to utilise this abundance of reliable energy not only to transform our own energy systems but also that of our neighbours – if we get the policy settings right.
We are, in fact, already seeing the benefits of renewable energy flowing into our electricity grids. With all the inflation pressures on our bank accounts it looks like electricity pricing may be one cost that could be turning a corner – largely thanks to cheap solar and wind energy.
Renewables are Bringing Down the Cost of Producing Electricity
Here at Greenpeace, while we think there are some important questions to ask about renewable energy, it is clear that solar and wind are certainly the cheapest energy options available.
In contrast, coal, oil and gas are not only big on pollution, they are also proving costlier as they struggle to cope with the changing nature of our electricity systems. Plus, fossil fuels are much more exposed to international price fluctuations – as we all experienced when our electricity bills rapidly rose following the Russian invasion of Ukraine.
Wouldn’t it be great if we instead had energy independence, sourced from an infinite supply of clean energy?
Solar and wind (backed by batteries) can do just that and the reality is that they are already out-competing the old guard of gas and coal simply because they are quicker and cheaper to deploy. Which is good news for electricity prices!
Although whether energy retailers are passing on those savings to customers is another question. Short answer: no, they’re not – but it is a bit complex.
Why are my electricity bills still high?
There are a number of elements that make up the final amount we see on our bills. The graph below shows the breakdown of energy costs covered by our bills.
You will see roughly a third (36.2% in 2025-26) of the cost goes to maintenance and build out of the electricity grid. This includes the transmission lines needed to connect to new renewable energy sites and to connect states so they can better share their energy resources. The ‘network’ costs have been increasing but so have other components of our bill, most notably the ‘wholesale’ cost of producing electricity.
Thankfully, the cost of producing the electricity is now starting to go down (thanks to renewables and batteries), but they are coming off record highs thanks to the exorbitant cost of gas and the unreliability of coal power stations that are old and no longer fit for purpose.
During high demand times (eg, when we all get home from work on a hot day and turn on the air conditioning) spot prices can quickly jump. Add to that a couple of coal power plants breaking down (as they increasingly do), and expensive gas fired power use spikes in the system. This can quickly cancel out any of the cost savings solar power may have created during the day when prices can actually go negative.
The good news is that this is exactly the problem batteries can solve. Batteries are great at soaking up the surplus supply of solar during the middle of the day, which creates a more efficient system, and then rapidly pumping out that power during the evening peak at a cheaper rate than gas.
How much have costs come down?
According to the Australian energy regulator (AEMO), wholesale electricity prices across the east coast have dropped by 44% when comparing prices in quarter 4 of 2025 to the same period in 2024.
AEMO directly attributes the change to the significant growth in wind (up 29%), solar (up 15%), and batteries (3,796 MW of new battery capacity added). This influx of cheap renewable energy has seen a corresponding decrease in the use of polluting fossil fuels to power the grid. Coal fired power dropped by 4.6% and gas fired power fell by a staggering 27%.
The same trend can be seen in the world’s largest standalone grid in WA where renewable energy and storage supplied a record 52.4% of the grid’s energy across the final 3 months of 2025. That is an impressive result given there is no interstate connection to borrow energy from and there is no hydroelectric power in the system.
As a result, WA has seen a 13% drop in wholesale electricity prices thanks to a 5.8% reduction in coal fired power and a 16.4% reduction in gas fired power.
Australian Households Lead the Way on Solar and Batteries
Despite all the attempts to discredit clean energy by Trump and other conservative politicians, Aussie households have long known the value of renewable energy. In fact, Australia now holds the title for the highest rate of solar energy per capita in the world.
This is now being followed by the rapid takeup of household batteries with the Clean Energy Regulator being overwhelmed with interest in the Cheaper Home Batteries Program. They now expect to receive “around 175,000 valid battery applications corresponding to a total usable capacity of 3.9 GWh by the end of 2025.”’
All these extra batteries storing the surplus solar energy across our neighbourhoods during the day is not only creating drastic bill reductions for those households who are installing them, it is helping the whole grid. Which eventually will help everyone’s electricity bills.
If Australia as a whole follows the lead of suburban families by switching to cheap solar (plus wind) backed-up by batteries, it has an unparalleled opportunity to build its economy on the back of unlimited, local, clean energy harnessed from the sun and wind.
Powering our Future Economy
If there was ever something Australia has a natural advantage in, its sun and wind. But given the growing demand for electricity from data centres and the electrification of heavy industry, we are going to need more than just rooftop solar panels.
That’s where Australia has the potential, more than almost any other country, to become a renewable energy powerhouse and punch above our weight in the fight against climate change. See for example the unique opportunity to enter into the production and export of green iron.
While there is still quite a way to go before our electricity is fully sourced from solar and wind, we are well on the way. The clean energy charge is gathering pace – and our communities, oceans, wildlife and bank balances will be the better for it.
Climate Change
Whale Entanglements in Fishing Gear Surge Off U.S. West Coast During Marine Heatwaves
New research finds that rising ocean temperatures are shrinking cool-water feeding grounds, pushing humpbacks into gear-heavy waters near shore. Scientists say ocean forecasting tool could help fisheries reduce the risk.
Each spring, humpback whales start to feed off the coast of California and Oregon on dense schools of anchovies, sardines and krill—prey sustained by cool, nutrient-rich water that seasonal winds draw up from the deep ocean.
Whale Entanglements in Fishing Gear Surge Off U.S. West Coast During Marine Heatwaves
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