Environment
Geoengineering Climate Change: Part 2 - Modifying The Air - 21st Century Tech Blog
Desh Flash desk6 November 2026, 11:55 am IST1 minUpdated 6 November 2026, 11:55 am IST
To reverse global warming, rising levels of greenhouse gases (GHG) need to be removed from the atmosphere. Despite annual global meetings sponsored by the United Nations to address atmospheric accumulations, human-generated carbon dioxide (CO₂) and methane (CH₄) continue to rise. The cumulative effect to date from the beginning of the Industrial Revolution in the mid-19th century amounts to nearly a trillion tons of CO₂ or equivalent GHGs. Climate scientists conservatively estimate that histori
To reverse global warming, rising levels of greenhouse gases (GHG) need to be removed from the atmosphere. Despite annual global meetings sponsored by the United Nations to address atmospheric accumulations, human-generated carbon dioxide (CO₂) and methane (CH₄) continue to rise.
The cumulative effect to date from the beginning of the Industrial Revolution in the mid-19th century amounts to nearly a trillion tons of CO₂ or equivalent GHGs. Climate scientists conservatively estimate that historic accumulations of the two gases have contributed to a mean surface warming of the planet by 0.45°C (0.8°F).
Why are climate scientists quoting much higher global warming numbers than 0..45°C? Because CO₂ is only one GHG contributor. Others include CH₄ (which causes short-term spikes in temperature rise), nitrous oxide (N₂O), halocarbons, ozone pollution, and increased water vapour. Then add the recurring El Niños and global temperatures are exceeding the temperature rise attributed to just CO₂.
Warming Appears to be Accelerating
In 2024, the World Meteorological Organization (WMO) estimated global temperatures were between 1.34°C and 1.41°C (2.41°F to 2.54°F) higher than the mid-19th century. The report also noted that, averaged over several decades, the rise was accelerating.
Source: https://www.21stcentech.com/geoengineering-climate-change-part-2-modifying-the-air/