Hi, why would we laugh. It's a great thing to want to help fellow travellers on this journey called life, and it's even better if you just want others to be happy and aren't worried about your own happiness.
The sad thing about world hunger is that you are far from the first person to feel you'd like to help everyone be less hungry, but such are human beings that it's a problem we can't defeat even though actually there are solutions. Money, energy and time has been thrown at the problem for a hundred years and more, and actually little changes.
So all you can do, is to take one step at a time and one day at at time. You probably can't make great change but you can do enough to say that you tried, and that's good enough.
It's very difficult to be specific about how best to start. Having a degree first would certainly help to elevate your position in a charity, as would experience gained by just volunteering, so if you just want to be hands on, that's the way to go. How big do you want to go to get started? You can collect money for charities by rattling a tin to collect donations, you can join VSO (voluntary service overseas) and actually be hands on in a place that is desperate for help, you can help locally in a charity kitchen, the possibilities are endless and none of them need an education. Just your time and dedication. Just don't imagine you will save the world. In 100 more years, others will be wanting to do what you are wanting to do now.