Significant progresses have been made in global climate change science for the past 20 years. However, there is still a long way for scientists to harvest the ripe fruit. The current argument over detection of and attribution to climate change could not be ignored, and the projection of anthropogenic climate change trend given by the IPCC TAR would be surely subject to modification with the prospective progress in the exciting field of modern earth sciences. These progresses should, and most probably will, be made in history of earth climate change, global carbon cycle, climate system model and climate modeling, land use and land cover change and the effect on regional or even sub continental climates, and stability of earth climate system.