Seven of 16 Planetary Vital Signs of Earth Now at Record Extremes, Study Finds

New Delhi: Earth's climate system is moving deeper into "uncharted territory", with seven of 16 climate-related planetary vital signs now at record extremes, a new study has found. Published in the journal BioScience, it tracked greenhouse gas concentrations, temperatures, the oceans, ice, Earth's energy balance, and wildfire. Human activities driving the changes too were monitored, including energy use, food production, economic growth, and land-use change.

"We are witnessing the rapid destabilisation of the Earth's climate system. This is no longer a warning for the future; it is a diagnosis of the present," the authors wrote.

"Earth's climate system is moving deeper into uncharted territory," they said.

Concentrations of carbon dioxide, methane, and nitrous oxide all reached record levels again in 2026, the study found.

Fossil fuel consumption rose by 0.9 per cent in 2025, with oil, coal, and gas all reaching record highs, and annual energy-related carbon dioxide emissions surpassed 41 gigatonnes for the first time, the researchers said.

The authors noted that the rate of global warming may have accelerated, from about 0.05 degrees Celsius per decade between 1880 and 1970 to about 0.36 degrees Celsius per decade between 2010 and 2024.

"At current rates, 2 degrees Celsius above pre-industrial levels could be reached before 2050," they said.

The authors also highlighted escalating risks from climate tipping elements, including an increasing vulnerability of the Amazon rainforest, where "the combined effects of warming and deforestation could push it past an irreversible threshold at just 1.5 degrees Celsius - 1.9 degrees Celsius of warming."

Despite the worrying trends, however, the researchers point to encouraging signs of change.

Low-carbon sources provided roughly 43 per cent of global electricity generation in 2025, and solar and wind energy consumption grew by approximately 18 per cent.

"In 2025, for the first time in more than a century of coal-dominated electricity generation, renewable energy sources (solar, wind, hydropower, and other renewables) have surpassed coal globally, marking a potentially historic turning point in the transition toward clean energy," the authors said.

However, progress remains far below the scale and speed is needed to stabilise Earth's climate system, they added.

Cutting emissions remains essential, but it must now be accompanied by rapid adaptation, the team said, highlighting "fast-track" measures to reduce near-term risks while delivering co-benefits.

"Mangrove restoration can offer protection against storm surges while enhancing carbon sequestration," the researchers suggested.

Shifts toward plant-based diets can reduce the risk of climate-related food system instability while increasing soil carbon and reducing pressure on biodiversity, they said.

Distributed solar can reduce the risk of storm-related grid failure while increasing energy security, the team added.