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Emissions change data anomaly #44

Closed robinhouston closed 12 years ago

robinhouston commented 12 years ago

“Yemen, change in CO2 emissions: -879.6%. How is it possible?”

Very good question, I think!

In the Master Emissions and Consumption data spreadsheet, Yemen has a 58% rise in emissions 1990–2010. But that can’t be the data source (because ours is described as 1990–2008).

In World Bank Data Master, Yemen is shown as having negative emissions in 1990 (cell I230), which is the source of this seemingly impossible figure. Can that possibly be right? Why would Yemen be the only country in the world with negative emissions in 1990?

robinhouston commented 12 years ago

PS. Even if for some strange reason these figures are right, it’s crazy to express a rise in emissions as a negative number (though it’s correct that a rise from a negative baseline is a negative proportion of the baseline) because without more information a negative percentage makes it sound as though the emissions fell.

robinhouston commented 12 years ago

The negative value is really there in the raw data: http://data.worldbank.org/indicator/EN.ATM.CO2E.PC/countries/YE-XQ-XN?page=4 and scroll to the bottom. How strange.

kiln commented 12 years ago

Yep, someone asked about this in the comments. I replied to that effect. Must be an error.

D

On 30 Mar 2012, at 09:50, Robin Houston wrote:

The negative value is really there in the raw data: http://data.worldbank.org/indicator/EN.ATM.CO2E.PC/countries/YE-XQ-XN?page=4 and scroll to the bottom. How strange.


Reply to this email directly or view it on GitHub: https://github.com/kiln/carbonmap.org/issues/44#issuecomment-4838665

robinhouston commented 12 years ago

Shall we just drop Yemen from this dataset then?

kiln commented 12 years ago

Let's estimate it. I will do.

On 30 Mar 2012, at 10:02, Robin Houston wrote:

Shall we just drop Yemen from this dataset then?


Reply to this email directly or view it on GitHub: https://github.com/kiln/carbonmap.org/issues/44#issuecomment-4838820

kiln commented 12 years ago

World Bank have corrected the data. I have updated.