As a scientist who models plant diseases, I use a lot of weather data. Often this data is not available for areas of interest. Previously, I worked with the International Rice Research Institute (IRRI) and often the countries I was working with did not have weather data available or I was working on a large area covering several countries and needed a single source of data to work from.

camsRad is a lightweight R client for the CAMS Radiation Service, that provides satellite-based time series of solar irradiation for the actual weather conditions as well as for clear-sky conditions. Satellite-based solar irradiation data have been around roughly as long our modern era satellites. But the price tag has been very high, in the range of several thousand euros per site.

Whether you are an environmental scientist, a pollution expert or just concerned about the air you breathe when cycling in the United Kingdom, the ropensci rdefra package can help find the information you need. This package gives you access to the UK-AIR database, hosted by the Department for Environment, Food &