New hockeystick package on github The goal of hockeystick is to make essential Climate Change datasets easily available to non-climate experts. hockeystick users can download the latest raw data from authoritative sources as well as view it via pre-defined ggplot2 charts. Datasets include atmospheric CO2, instrumental and ice-core temperature records, sea levels, and Arctic/Antarctic sea-ice. Additional visualizations using this data will be added over time. The choice of data is based on Professor Stefan Rahmstorf’s presentation on The 5 Most Important Data Sets of Climate Science.