Home to some of the largest stock exchanges and corporations in the world, making progress in Europe will be key if the divestment effort wants to pose a serious threat to the fossil fuel industry.
Archbishop Desmond Tutu, one of the most revered figures of South Africa's anti-apartheid struggle and a key backer of the divestment campaign that helped end the system, was an early backer of fossil fuel divestment and said in 2014: "People of conscience need to break their ties with corporations financing the injustice of climate change".
The Wallace fund, under its executive director Ellen Dorsey, has been a key organiser of the divestment campaign in the philanthropic world.
Ellen Dorsey, executive director of the Wallace Global Fund and another key figure in the divestment movement, said: "I think at pivotal moments in history we have seen editors and media outlets stand up and take unprecedented action.
The divestment is key development for Cisco.
Trump's recent actions are not a complete break from the recent past, and reflect a worrying trend in divestment from key parts of the developing world.
On 24 August 2010, after 6 years of national and international campaigning, divestment by key Vedanta shareholders and protracted legal challenges, then Indian Minister of Environment and Forests, Jairam Ramesh refused permission for the mining project, criticising the company and accusing it of breaking the law.
By 1994, white majority rule collapsed, and Nelson Mandela later acknowledged that the divestment campaign played a key role in bringing South Africa's apartheid leaders to the negotiating table.
Further reading: The rise and rise of the fossil fuel divestment movement A number of key institutions have explicitly refused to divest from fossil fuels.
Key themes for debate will include: Can divestment be a catalyst for change or is it just a political protest?
The chief executive of RBS, Ross McEwan said: "The divestment of Citizens is a key component of our plan to continue to strengthen RBS's capital position.
