ABS CBN: Changing weather patterns as a result of climate change could lower agricultural production in the Philippines and aggravate rising food prices, an official of weather bureau PAGASA said Thursday. Lourdes Tibig, chief of the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) climate data section, said the increase in greenhouse gases, which then affects weather patterns, is already having an effect on crop yields in some parts of the country. …