Transportation in the Philippines it has the largest number of international flights to the Philippines as well as domestic flights. The Philippine Airlines links Manila to 48 cities in 4 continents, and flies regularly to 41 domestic destinations outside Manila. Philippine Airlines also serves twenty destinations in the Philippines and 32 destinations which are all located in Southeast Asia, South Asia, East Asia, Oceania and North America. Cebu Pacific is the low fare leader in the country, and is the country's leading domestic airline. It links Manila to 21 different domestic destinations in Philippines and to 39 international destinations with its direct flights. After
Ocean acidification in the Arctic Ocean is thought that because of this, additional stressors such as ocean acidification, will cause ocean acidification effects on marine organisms to appear first in the Arctic. There exists a significant variation in the sensitivity of marine organisms to increased ocean acidification. Calcifying organisms generally exhibit larger negative responses from ocean acidification than non‐calcifying organisms across numerous response variables, with the exception of crustaceans, which calcify but were not negatively affected. The acidification of the Arctic ocean will impact these marine calcifiers in several different ways. The uptake of CO₂ by seawater increases the concentration of hydrogen ions, which lowers pH