Hundreds of activists marched on the UN Climate Change Conference in the Egyptian town of Sharm El-Sheikh on Saturday, demanding reparations for damage caused by climate change in poor regions. In a significant step, delegates of the conference, known as COP27, agreed last week to place the contentious issue of loss and damage funding on the agenda for the first time. Developing countries had long pressed for the creation of a financial mechanism for addressing climate-induced harms in poor countries. But several developed countries, including the US and Britain, are blocking progress at COP27…