Al Gore: battle against climate change is like fight against slavery

Former US vice-president says green revolution is bigger than industrial revolution and happening at faster pace than digital revolutionThe fight against global warming is one of humanity’s great moral movements, alongside the abolition of slavery, the defeat of apartheid, votes for women and gay rights, according to the former US vice-president and climate campaigner, Al Gore.The battle to halt climate change can be won, he said, because the green revolution delivering clean energy is bot