and we're back with ad nanami in the director general of the international renewable energy agency discussing how renewables are transforming the outlook for our planet's future welcome back to the show right so. when farms ok they may be a source for clean energy but they destruct and they sort of destruct their migration pattern of birds for instance and then you have the smaller farms and they occupy huge amount of land so also destroying nature you have hydro that destroys day ecosystem around and sam so i'm wondering is clean energy are really that environmentally friendly it's remarkable how big. of coal the. once we're talking about the environmental impact of renewable it's stunning to me. it's not to say that there are no environmental impacts there is virtually no industrial activity that you're going to be engaged in that has no impact on the environment but what you can see in terms of energy and power generation renewables have the smallest environmental footprint of any generation technology that you have i mean said that there are important issues with wind especially in the pa