Abstract: By collecting panel data of 70 countries from the 1980 to 2016 period, this paper researches how technological innovation responds to climate change, using patent counts of climate change mitigation technologies as technological innovation, carbon dioxide and other greenhouse gas emissions as climate change, introducing other control variables and employing various econometric methods. The result shows that a country's propensity to innovate and patent a climate-change technology is influenced by the levels of carbon dioxide and other greenhouse gases emissions. Both carbon dioxide emissions from gas and solid fuel consumptions have significant positive impacts on the number of climate-related patents; and negative significant effects of carbon emissions from liquid fuel consumption and other greenhouse gas emissions on the number of climate-related. Furthermore, countries tend to respond more to higher levels of carbon emissions by producing more climate-change technologies. Lastly, the study finds that the presence of government investments in energy, telecom, transport or water sanitation projects does not always prove to be a contributing factor to the development of climate technologies. This paper brings a new theoretical lens to the field of environmental-innovation and provides the basis for some certain policy implications.