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The Data Explorer

Three real, sourced datasets, visualised: the long climb of atmospheric CO2, the warmest years on record, and how fast renewables are growing — plus Nigeria's own 2025 flood numbers.

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CO2, Mauna Loa, 20250
3 warmest years on record0

🌤️ Today's weather

Live, right now — defaults to Ibadan, or search any city

Weather data: Open-Meteo (free, no key, CC BY 4.0). One important distinction: this is weather — today, one place. The charts below are climate — decades, the whole planet. A hot or rainy day here says nothing about global warming on its own; see Weather vs. Climate.

Atmospheric CO2 is still climbing

Annual mean CO2 concentration, Mauna Loa Observatory, Hawaii (parts per million)

Source: NOAA Global Monitoring Laboratory, Mauna Loa Observatory annual mean CO2 records.

2023, 2024 and 2025: the three warmest years on record

Global surface temperature anomaly vs. the 20th-century (1901–2000) average

Source: NOAA National Centers for Environmental Information (NCEI), annual global climate reports. The ten warmest years on record have all occurred since 2015.

Renewables are closing in on coal

Share of global electricity generation from renewable sources

~201523%
202432%
202534%

Source: International Energy Agency, Global Energy Review 2026 — electricity supply.

Nigeria, 2025: a year of climate extremes

30 / 36
states flagged at high flood risk
~15M
Nigerians estimated at flood risk
42°C
peak heat recorded in the north
35M
people projected at food-insecurity risk into 2026

Sources: Nigeria's 2025 Annual Flood Outlook (NIHSA/NEMA), NiMet heat advisories, WFP food security projections.