DAKAR (Reuters) -The European Union has earmarked over 150 billion euros ($170 billion) for investments in Africa under a global fund launched to offer an alternative to Chinese money, the European Commission said on Thursday. The investment would take up half of the EU’s 300-billion-euro Global Gateway scheme, which that was launched in December with the aim of strengthening Europe’s supply chains and fighting climate change in sectors including health, energy and transport. It comes as many European states seek to reduce illegal migration from Africa, driven in part by poverty and joblessnes…