The Human Impacts Database

A collection of useful numbers for quantifying the impacts of the human presence on Earth.

This quantity comes from a time series measurement and the most recent value (2020) is reported.


Value:		1.20 ± 0.16 °C see this value in other units This is equivalent to... 2.16 ± 0.29 °F
HuID:		76539
Relevant Year(s):		2020
Summary:		The global surface temperature change (known in the literature as anomaly) reflects the temperature over the Earth's land and sea surface relative to the average temperature of period 1850-1900. Data obtained from the NOAA Merged Land Ocean Global Surface Temperature Analysis Dataset (NOAAGlobalTemp) v5.
Method:		Temperature anomalies in the source file are provided relative to a 1971–2000 monthly climatology. In the processed file, anomalies are presented with respect to the 1850-1900 mean of the HadCRUT4 dataset for ease of comparison between datasets. The land surface air temperature observations come from the Global Historical Climatology Network Monthly (GHCN-Monthly) database, version 4, which integrates data from over 20 land surface stations across the globe. The uncertainty represents the 95% confidence interval diagnosed from the total error variance reported in the original source, assuming a Gaussian distribution.
Source:		NOAA NOAAGlobalTemp v5 Global Surface Temperature Time Series. (2020)
Dataset:		NOAAGlobalTemp v5 Global Surface Temperature Time Series (NOAAGlobalTempv5_global_surf_temperature_trend.csv) global resolution
Trend:
Added By:		ilopezgo