Where the numbers come from
Nigeria's temperature record comes from weather stations run by NiMet, some with decades of daily readings. Globally, thousands of stations, ships, buoys and satellites feed the datasets. Scientists usually chart anomalies, the difference from a baseline period, rather than raw temperatures, because anomalies compare fairly across places.
So when a chart says 'plus 1.2 degrees', it means compared to a stated baseline, usually the late 1800s. Always find the baseline. It is written on every honest chart.
How we know they are real
Independent teams, NASA, NOAA, the UK's Met Office and Berkeley Earth, build separate datasets from overlapping raw data. They disagree on decimals and agree on the trend. Berkeley Earth was founded by a physicist skeptical of the others' methods. His team got the same answer.
Adjustments happen, and they are documented in public. Stations move, cities grow around them, instruments change. Correcting for that is not fraud. Doing it in the open, with the raw data still available, is the opposite of fraud.
Reading Nigeria's record
Pull Nigeria's record on the World Bank Climate Knowledge Portal. Look at the trend since 1960, then look at the count of hot days rather than the average. The average moves gently. The extremes do not.
This is the record your CY-101 claims stand on. You have now seen where it lives and who checks it. That is more than most adults arguing about climate on the radio can say.
Hold on to these
- Temperature charts usually show anomalies against a stated baseline. Find the baseline.
- Multiple independent datasets, including one built by skeptics, agree on the warming trend.
- Adjustments are documented publicly, with raw data still available. That is transparency, not fraud.
Check yourself
No grades here. If you can answer these out loud, you own the lesson.
- 1.What is a temperature anomaly and why is it used instead of raw temperature?
- 2.Why does agreement between independent datasets matter more than any single one?
- 3.Where would you find Nigeria's temperature record right now, on your phone?