On December 12, French President Emmanuel Macron, joined by President of the World Bank Group, Jim Yong Kim and the Secretary-General of the United Nations, António Guterres, hosted the One Planet Summit highlighting public and private finance in support of climate action. The summit's focus centered on addressing the fight against climate change and ensuring that climate issues are central to the finance sector.

The summit's most notable event was perhaps the announcement that insurance giant Axa would be dumping investments in and ending insurance for controversial U.S. oil pipelines, quadrupling its divestment from coal businesses, and increasing its green investments fivefold by 2020. Axa's plans echo those of BNP Paribas, who, in mid-October, announced that it would terminate business with companies whose principal activities involve exploration, distribution, marketing, or trading of oil and gas from shale or oil sands. The bank also ceased financing projects that are primarily involved in the transportation or export of oil and gas. These moves themselves follow controversy over the Dakota Access pipeline in the U.S. from mid-March that resulted in ING's $2.5 billion divestment in the loan that financed the pipeline.

These measures prefigure what might be a more conspicuous trend of large institutional investors moving more rapidly away from fossil fuel investments and into green investments. In mid-December, the World Bank said it would end all financial support for oil and gas exploration by 2019. Around the same time, New York Governor Andrew Cuomo revealed a plan for the state's common retirement fund, with over $200 billion in assets, to cease all new investments in entities with significant fossil-fuel related activities and to completely decarbonize its portfolio. Recently, HSBC pledged $100 billion to be spent on sustainable finance and investment over the next eight years in an effort to address climate change. Additionally, JP Morgan Chase committed $200 billion to similar clean-minded investments, Macquarie acquired the UK's Green Investment Bank, and Deutsche Bank and Credit Agricole both made exits from coal lending. As the landscape of global finance shifts, it will be important to monitor how funds, banks, and insurers address the issues related to climate change.

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