Carbon dioxide (CO₂)
427.9 ppm
+54% above pre-industrial
pre-industrial ≈ 278 ppm · as of 2026-09
Climate & Greenhouse Gases
What the planet’s instruments are reading
The actual measured numbers — atmospheric greenhouse gases, the global temperature anomaly, and Arctic sea ice — from NOAA, NASA and the National Snow & Ice Data Center. Measurements, not models or predictions.
Greenhouse gases in the atmosphere
Current concentration vs the pre-industrial baseline (a factual reference point, ~1750).
Methane (CH₄)
1,941 ppb
+169% above pre-industrial
pre-industrial ≈ 722 ppb · as of 2026.5
Nitrous oxide (N₂O)
340 ppb
+26% above pre-industrial
pre-industrial ≈ 270 ppb · as of 2026.5
Global temperature anomaly
+1.40 °C
above the 1951–1980 average · 2026
Land-surface anomaly, 1880 → today (NASA GISTEMP).
Arctic sea ice
22.02 million km²
Global Sea Ice Extent (1979-2026)
Arctic sea-ice extent shrinks in summer and rebuilds in winter; the long-term trend is the story.
Ocean conditions · avg 22.6°C
Live water temperature, wave height and wind from NOAA buoys across the Gulf, Atlantic and Pacific.
Gulf of Mexico (Mid-Gulf)
—
temp n/a
🌊 0.7 ft waves · 💨 4 mph
Buoy 42001
Atlantic — E of Cape Hatteras
81°F
27.3°C water
🌊 8.2 ft waves · 💨 7 mph
Buoy 41001
Massachusetts Bay (Boston)
66°F
19°C water
· 💨 4 mph
Buoy 44013
Monterey Bay, California
65°F
18.3°C water
· 💨 13 mph
Buoy 46042
Gulf of Alaska
—
temp n/a
· 💨 20 mph
Buoy 46001
Hawaii (NE Pacific)
—
temp n/a
· 💨 9 mph
Buoy 51000
Tropical North Atlantic
84°F
28.7°C water
🌊 5.6 ft waves · 💨 20 mph
Buoy 41040
California — offshore Pacific
67°F
19.5°C water
🌊 5.2 ft waves · 💨 7 mph
Buoy 46059
Sources: NOAA Global Monitoring Lab (greenhouse gases), NASA GISTEMP (temperature), NSIDC (sea ice) via global-warming.org, and NOAA NDBC buoys (ocean) · updated Sep 12, 2026, 7:30 AM. Factual measurements — no projections or risk scores.