The risks linked to global warming are among the first concerns of investors: physical, regulatory, or stranded asset risk, they affect all companies. This first translated into a demand for more transparency on the possible consequences of climate change and the measurement of the carbon footprint. Investors, in particular institutional investors and socially responsible investment funds, are now adopting a more active behavior. By excluding certain company stocks deemed too polluting from portfolios, by engaging in dialogue with companies or by submitting climate resolutions to the agendas of general meetings, they help make companies more responsible. Activism appears to be welcomed by financial markets and does not come at the expense of shareholder value.