The blanket makes no heat of its own. It just slows your warmth from leaving. Some gases in the air do the same job. They sit around our whole planet like a blanket.
Scientists call this the greenhouse effect.
greenhouse effect
How certain gases in the air trap heat near Earth. That trapped heat keeps the planet warm. Like a blanket holding in warmth.
Sources
NOAA
NASA Science, The Carbon Cycle
NOAA Climate.gov, on Eunice Foote's 1856 experiment
NOAA Climate.gov
UCAR/NCAR News (news.ucar.edu)
NASA Earth Observatory, "Earth's Big Heat Bucket"
Global Carbon Project, Global Carbon Budget 2025 — fossil CO2 emissions 38.1 billion tonnes (https://globalcarbonbudget.org/fossil-fuel-co2-emissions-hit-record-high-in-2025/) — required for the emissions figure in section 17
NOAA Global Monitoring Laboratory, Trends in Atmospheric Carbon Dioxide + Annual Mean Growth Rate for Mauna Loa (https://gml.noaa.gov/ccgg/trends/gr.html) — required for the current ppm and growth-rate figures in sections 24-25
Scripps Institution of Oceanography, The Keeling Curve (https://keelingcurve.ucsd.edu/) — origin of the 313 ppm first reading and the 420 ppm milestone in sections 23-24
National Snow and Ice Data Center, Science of Sea Ice / Why Sea Ice Matters (https://nsidc.org/learn/parts-cryosphere/sea-ice/science-sea-ice) — the 50-70% vs 6% albedo figures in section 30 and the melt-season claim in section 33 are NSIDC's; NSIDC is currently uncredited
IPCC AR6 Working Group I, Summary for Policymakers (https://www.ipcc.ch/report/ar6/wg1/) — the 2-million-year CO2 statement in section 29 and the 1.09°C warming figure in section 36
Tierney, J. E. et al. (2020), 'Glacial cooling and climate sensitivity revisited', Nature 584, 569-573 (https://www.nature.com/articles/s41586-020-2617-x) — the primary source for the ice-age temperature in section 35, currently cited only via a UCAR news headline
NASA Science, 'Is the ozone hole causing climate change?' (https://science.nasa.gov/climate-change/faq/is-the-ozone-hole-causing-climate-change/) — the source for the ozone claims in section 38
NOAA National Ocean Service, 'What is the difference between weather and climate?' (https://oceanservice.noaa.gov/facts/weather_climate.html) — replaces the misattributed aphorism in section 7
EPICA Community Members (2004), 'Eight glacial cycles from an Antarctic ice core', Nature 429, 623-628 — the primary source for the 800,000-year record in sections 27 and 29
Replace the bare source names currently stored on the module with full citations plus URLs — six of the seven entries are unresolvable strings ('NOAA', 'NOAA Climate.gov'), which is how three of the quote misattributions went unnoticed
Read end to end and corrected: August 9, 2026. Numbers checked: August 9, 2026.