 Remote sensing techniques can provide accurate measurements of solar radiation absorbed by the Earth's atmosphere and surface. However, more research is needed to understand how this energy is distributed throughout the climate system and at the Earth's surface. Satellite-based remote sensing algorithms have been developed to estimate evapotranspiration from landscapes and regions with remotely sensed surface temperatures. These algorithms have limitations due to temporal and spatial scaling issues, as well as the need for continuous estimates in space and time. Remote sensing has been used to estimate evapotranspiration on a rice paddy in Taiwan, but further research is necessary to improve accuracy and reliability of these algorithms. This article was authored by UNLU and Sanjeev Kumar Kar.