Web technologies have proven to be very helpful to users and have proliferated. As web technologies evolve rapidly, the runtime environment for web user interfaces is constantly changing. Unique web portals have been created to deliver climate change related information and data. One of these portals, discussed in this paper, is called the Nevada Climate Change Portal. Currently, there are questions regarding how to develop this portal while it is still in its early stages of development. In an attempt to answer some of these questions, usability testing has been performed to assess the fitness of this web portal for its stated requirements. The usability tests are described herein, which employ the methods of accessibility testing and competitive testing.
