A new scientific paper entitled High-income groups disproportionately contribute to climate extremes worldwide published in Nature Climate Change provides sharp empirical evidence for something that Marxists, particularly in the Global South, have long argued: the climate crisis is not caused by humanity in general, but by a global capitalist system that concentrates power, wealth and destruction in the hands of a few.

Written by a team of scholars led by systems analyst, Sarah Schöngart, the study finds that the wealthiest 10 per cent of the world’s population are responsible for a staggering 65 per cent of the rise in global temperatures since 1990. The richest 1 per cent alone produced emissions that caused 20 times more warming per person than the global average. Meanwhile, the poorest half of humanity, around 3.5 billion people, produced just one-tenth of global emissions. This is not just inequality. It is exploitation, and it is structural.

Climate Change is Not Class Neutral

Mainstream media outlets like CNN, BBC, The New York Times, and powerful international institutions such as the United Nations Framework Convention on Climate Change, the World Bank, and the International Monetary Fund continue to present climate change as a shared global challenge, something we are all equally responsible for and equally impacted by. This narrative centres on individual behaviour: drive less, recycle more, offset your flights. But this framing obscures the deeper, structural truth. It is not humanity in general that is driving climate collapse. It is capitalism — a system built on the relentless pursuit of profit, not collective human need. The capitalist class, the owners of wealth and production, consume exponentially more energy, travel farther and more frequently, and invest directly in the industries that extract, pollute, and destroy. Climate breakdown is not an unfortunate side effect. It is the logical and inevitable result of a system that prizes endless accumulation over planetary survival. By individualising responsibility and masking the role of capital, these dominant narratives let the real culprits, rich states, corporations, and investors, off the hook.

This study gives that logic a geographic and class-based shape. Emissions from the wealthiest people in countries such as the United States, Germany, the United Kingdom, and other advanced capitalist states are causing deadly heatwaves and droughts in the Amazon, Southeast Asia and sub-Saharan Africa. Regions least responsible for climate change but most exposed to its extremes. This is not just inequality. This is climate imperialism, the export of suffering from the imperialist core to the periphery.

Investment Capital Is Killing the Planet

Crucially, the paper does not only look at personal consumption like travel or luxury goods. It also includes emissions from investment capital. That means the rich are not only polluting through consumption, they are polluting through ownership. Their portfolios direct billions into fossil fuel expansion, deforestation, industrial agriculture and energy-intensive industries. The warming that results is not a by-product of need. It is a consequence of wealth itself under capitalism.

The global economic system does not simply reward polluters—it depends on them. The system functions because the ruling class captures the benefits while shifting the costs onto workers, Indigenous communities, smallholder farmers, and urban poor in climate-vulnerable regions.

Australia’s Complicity

As Australian Marxists, we cannot treat this as an issue happening elsewhere. Australia is a frontline state in the imperialist system, both a source of extractive capital and a node in global finance. Our billionaires and corporations help fuel this system, while our government subsidises fossil fuel giants and militarises borders to keep out those fleeing climate disaster.

While some on the liberal left cheer for market-based solutions, carbon credits or voluntary pledges, we must be clear: this system cannot be reformed into sustainability. The data in this paper makes one thing plain. Tinkering at the edges while leaving capital accumulation untouched will not halt the destruction. We must move beyond greenwashing and toward revolutionary change.

What This Means for Our Movement

The findings of this study offer strong evidence to reinforce what Marxists have argued for decades. It confirms, in scientific terms, that the climate crisis is a direct consequence of capitalist accumulation and class power, not a generalised human failing. This evidence strengthens our political case and underscores the urgency of building movements rooted in anti-capitalist and anti-imperialist struggle. Capitalism is the root of the ecological crisis, and any real solution must be based on collective ownership, democratic planning and global solidarity.

It also reminds us that fighting for climate justice means fighting for socialism. A system organised for human need, not private profit, could prioritise ecological restoration, reduce working hours, end wasteful overproduction and allow the people of the Global South to adapt and thrive without being strangled by debt or forced migration.

The class war is not coming. It is here, waged through rising seas, burning forests and unbearable heat. Our job is not just to analyse it. We must organise, agitate and build the power to win.