, - and you comprise. 0k, doctor mati hlatshwayo davis, thank| mati 's go to south—east asia now, and the philippines is ranked as one of the countries most vulnerable to the impacts of climate change. it's regularly hit by powerful storms, landslides, and flooding. on the country's largest island, luzon, one of its natural defences against extreme weather is at risk. the sierra madre mountain range was originally covered in rainforest, helping absorb heavy rains from typhoons that form in the pacific. but mining, quarrying and illegal logging have devastated much of the forest. our correspondent laura bicker has this special report on those fighting to protect the remaining forest — and those who want to exploit it. many believe these mist—covered mountains help save lives. that the uneven peaks offer protection from powerful storms. but the vast sierra madre is in peril. mining, quarrying and illegal logging have already stripped away around 90% of the original rainforest. now, among those living under the remaining canopies, there is conflict. betwe