How can you prove that there is no God?

I get so annoyed when people say that they would only believe in a God only if there was more evidence of him existing. There is so much of God's knowledge everywhere around us; there is infinite complexity and beauty in this universe from the tiniest living organism to the mive galaxies that surround us. There is so much detail in the oceans and on land that I don't understand why people need more evidence than what God has shown us already. I just feel that they are so ignorant about what there is already to see. I know that many people would say that they would only accept God if they could only see him but for me personally that is no acception because it is just like someone saying that 'I don't believe in love' or 'i don't believe in anger' or even 'i don't believe in happiness' 'just because i can't see it' or 'that there is not enough proof'. So then why do we believe it? We cannot see it or we cannot even reach out to touch it. We believe it because we can feel it. Similarly people believe in God because they can feel his existance, they can feel him there for whenever we need him. I know someone will come up with the word suffering; I have already tried to explain it in other posts that if there was never suffering in this world then nobody would care as much about God, ask for repentance and be greatful to him about not being in that suffering situation and the fact that God will keep a better life in the hereafter for innocent people who suffer. I am curious to know what other ways people would claim that there is no God.