Biodiversity Data Use

WorldClim is the most commonly-used climate data consisting of 19 derived bioclimatic variables (“BioClim”). These are typically divided into “quarters” (warmest quarter, driest quarter) and are related to seasonality. WorldClim also produces past and future modeled climate * Past: HCO, LGM, LIG * Future: to 2100 AD

But there are other sources e.g. http://ecoclimate.org/ that stretch back farther. These are often not just climate models but also models of land position/amount. These past and future models differ in that past models are parameterized and testable using direct evidence, whereas future models are based on forcing variables (e.g. CO₂)