Disasters caused by climate change and natural disasters cause crises in the world and in Turkey. As climate change and natural disasters affect economic life, these effects are also felt on a scale of individuals, businesses, States and globally. In the study, the disadvantages caused by disasters in the financial system, which occupies an important place in the economic system, were evaluated. In addition to evaluating their impact on the banking and insurance sector, financial instruments used for precautionary purposes were also mentioned. However, climate change and natural disasters also disrupt the liquidity balance of businesses. For these reasons, businesses become unable to pay their commercial debts, especially financial liabilities (tax-insurance). The effect of disasters on public financing is in terms of public revenues that cannot be collected, while the financial structure is also disrupted by the formation of additional expenditures in the public sector due to disasters that occur. This causes crises both in the public sector and in businesses. The study also discussed the negative effects of global warming and natural disasters on the financial sector within the scope of the economy. Measures and recommendations have been included to minimize the negative consequences of disasters, albeit a little bit, against the disruptions caused by these effects in the long term.