The G20 reaffirmed in Toronto recently their commitment to development aid even though it has rarely been shown to develop anything and has frequently been shown to do harm. The only way poor countries have developed is by allowing their people to make things, sell things and trade with other countries.
As world delegates tried in Bonn (9-11 April to revive the climate-change talks that collapsed in Copenhagen, the USA and other rich countries were working on protectionist carbon tariffs that will harm their own economies and harm the poor even more. On top of that, these "border measures" or "adaptation mechanisms" will not even have much effect on emissions.
Earth Day is now 40 but the environmental movement is still fighting old and pointless battles, such as the one against life-enhancing pesticides. On the other hand, it is not fighting battles that really do need fighting to allow the poor to improve their lot all over the world.