Read the following part of a project proposal. What is the problem the proposal is aimed at? One proposal to minimize the coming climate impacts includes three macro-level strategies to propel a global transition to non-carbon energy. * In industrial countries, withdraw all subsidies from fossil fuels and redirect those subsidies to non-carbon energy sources; * Create a global fund of about $500 billion a year to transfer clean energy technologies to developing countries; and, * Require all countries to increase the carbon efficiency of their economies by 5 percent per year.
选项：

A:Global transition to non-carbon energy;
B:The lack of clean energy technologies;
C:Climate impacts;
D:/