If companies can give convincing answers to these four questions, they may indeed remain part of the portfolio, and responsible investors can work with them as part of the climate solution, rather than concluding that they are part of the problem and parting ways. For those companies that duck the questions, including by claiming that the world will not in fact enforce the 2º limit, divestment would make sense on both financial and ethical grounds, as such companies are clearly not prepared to contribute to creating a low-carbon economy.