Mark Hodgson, Climate Science has discarded a lot of weather station data, and is quite capable of fabricating models to fill in the gaps:

https://wattsupwiththat.com/2017/04/27/oops-warmists-just-lost-the-antarctic-peninsula-it-is-now-cooling/

"And it just isn’t because the Steig et al. paper was wrong, as proven by three climate skeptics that submitted their own rebuttal, no, it’s because mother nature herself reversed the trend in actual temperature data in the Antarctic peninsula, and that one place where it was warming, was smeared over the entire continent by Mannian math to make it appear the whole of the Antarctic was warming."

How missing weather data is a 'life and death' issue

http://www.bbc.co.uk/news/business-41967241

"A shortage of weather data is putting many African countries at an economic disadvantage, experts believe. The BBC's Click team [added to its GHG footprint and] went to Tanzania to meet some tech start-ups trying to change the outlook."

"Without accurate weather data, people don't have evidence of what the weather is doing at ground level across the continent." Nor, indeed, do they know what the climate's doing, but it doesn't stop the alarmists telling us they know with certainty what's going on. One of my long-held problems with the climate data is that it is heavily skewed to parts of Europe and the contiguous USA while large swathes of the planet are virtually unreported.

And yet -

"The World Meteorological Office estimates there are just over 1,100 active weather stations in the whole of Africa - a continent of 54 countries, many with starkly different climates.
And the number of stations has halved over the last 30 years due to inadequate government funding, maintenance costs and limited resources.
Dr Joseph Mukabana, in his recent report for the African Ministerial Conference on Meteorology, says this "poor and sparse" network needs to be expanded to at least 12,000 to provide basic weather services and help manage climate change.
It has created "key gaps in our abilities to predict high-impact weather events", he says.
This dearth of weather stations means that what meteorologists call "ground truthing" - verifying predictions made from satellite data with earth-based evidence - is very difficult."

And: "There are several other projects aiming to fill the weather data void in Africa." So they admit there is a weather data void, then.

But the article is tucked away in the business section of the BBC website, and much of it is given up to climate alarmism. I'm not sure the BBC understand what they've done here (nor that they understand the issues).

They are gitting a bit jumpy now
Le quere points the finger