Cities, traffic, and CO2: A multi-decadal assessment of trends, drivers, and scaling relationships
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'Version 1.0 of the Database of Road Transportation Emissions (DARTE).  This dataset contains annual estimates of CO2 emissions from on-road transportation sources in the coterminous U.S. for the years 1980 through 2012. Emissions are reported on a 1 x 1 km grid' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["carbon dioxide","emissions","transportation","urban"]} <|eot_id|>
 Here is the Description of a dataset. Description:'Version 1.0 of the Database of Road Transportation Emissions (DARTE).  This dataset contains annual estimates of CO2 emissions from on-road transportation sources in the coterminous U.S. for the years 1980 through 2012. Emissions are reported on a 1 x 1 km grid' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
Version 1.0 of the Database of Road Transportation Emissions (DARTE).  This dataset contains annual estimates of CO2 emissions from on-road transportation sources in the coterminous U.S. for the years 1980 through 2012. Emissions are reported on a 1 x 1 km grid
carbon dioxide; emissions; transportation; urban