Whalesbook
Satellite data, processed by Carbon Mapper and analyzed by the Stop Methane Project (SPM), pinpoints sites responsible for the highest hourly emission rates, ranging from 3.7 to 10.5 metric tonnes per hour. The implications are stark: a single site emitting just 5 tonnes per hour has a warming impact equivalent to one million large SUVs or a 500-megawatt coal-fired power plant.
Methane: A Potent Greenhouse Gas
Methane's potency as a greenhouse gas is well-documented. While it persists in the atmosphere for a shorter duration than carbon dioxide, it traps significantly more heat in the near term. Over a 20-year period, methane is 86 times more effective at trapping heat than CO2. The International Energy Agency (IEA) notes that methane accounts for approximately 30% of the rise in global temperatures observed since the Industrial Revolution, with atmospheric levels now roughly 2.5 times higher than pre-industrial levels.
The Energy Sector's Methane Contribution
The energy sector is a major contributor, with the IEA estimating 145 million tonnes of methane emitted in 2024 alone. Oil and gas operations accounted for over 80 million tonnes of this total. Experts emphasize that cutting methane emissions from this sector is one of the most immediate ways to decelerate global warming, with technically feasible solutions available to curb over 70% of these emissions.
Other Global Methane Emission Hotspots
Beyond Turkmenistan, other significant methane emission sources were observed in Iran and Venezuela, alongside locations in Texas, USA, and the Sindh region of Pakistan. Earlier research has also pointed to other sources like landfills; for instance, a landfill in Delhi has been identified as a major methane super-emitter site. Data shows a severe leak event there in April 2022 exceeded 400 tonnes per hour, equivalent to the pollution from around 68 million cars running simultaneously.
Targeted action at these major emission sites is crucial for substantial progress in climate change mitigation.