Climate change unleashes negative impact on human water supplies, agriculture, migration patterns, infrastructure, financial flows, disease prevalence, and economic activity. These impacts, in turn, lead to national or international security problems stemming from the aggravation of internal conflicts, increased poverty and inequality, exacerbation of existing international conflicts, diversion of national and international resources from international security programs, contribution to global economic decline or collapse, or international realignments based on climate change mitigation policies. Hence, this study seeks to beam searchlight on the danger that climate change poses to human existence, environment, development, global economy and security. Although, the United Nations through its legal frameworks as set out in the Paris Agreement and Kyoto Protocol has put in place climate finance for mitigation and adaptation mechanism to curtail the effects of climate change. But the big question is how effective and realistic will the actualization of this mechanism be in the advent of inadequate climate finance or funding and prevalent corrupt practices in most of the developing (vulnerable) country parties? Hence, a call for more robust climate finance, prevention of climate finance against misappropriation or corrupt spending and review of the provisions of Articles 9 (1), (3), (4) of the Paris Agreement and 12 (8) of Kyoto Protocol to United Nations Framework Convention on Climate Change.