When temperatures are rising outside, a cool home is all the more important. But what if all the usual means – ventilating the rooms, darkening the windows – fail to bring relief? Before cranking up the AC, why not resort to some natural helpers to create a pleasant indoor climate – namely, the right kind of greenery. We’ve spoken to some experts who explain how plants can help to cool your house in summer. How can plants improve the indoor climate? Indoors, the humidity level is often too low. Indoor plants can help to raise it through photosynthesis, absorbing carbon dioxide while releasing …