新168幸运飞行艇的官方网站上，探索开奖历史，感受168飞艇现场直播 How Perth's water sources have changed over time

Climate change has dramatically 2024官网开奖计划为你提供实时信息，了解168飞艇计划开奖记录，新飞艇在线官方查询方便快捷。通过号码查询记录和官方开奖App，你可以轻松获取走势图规律 affected where we get our water from. Because rainfall is unpredictable, we now have a growing reliance on more energy-intensive and expensive, rainfall-independent drinking water sources. This includes desalinated seawater - water from the Indian Ocean with salt and impurities removed. There are fluctuations in our water source mix year to year, depending on how much rainwater we get. But, on average, Perth has relied on desalinated seawater over the past 5 years for around half of its drinking water supply. This is expected to increase in the future.