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Shorter-lived species might have more time to adapt to changes in ocean pH than longer-lived species. NYT PIC

JUST as humans rely on their sense of smell to detect suitable food and habitats, avoid danger, and find potential mates, so do fish — only instead of sniffing scent molecules floating through the air, they use their nostrils to sense chemicals suspended in water.

Read more: Fish to lose sense of smell?

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A flooded rice field. Credit: Photo: Nonie Reyes / World Bank

The world population is expected to grow to almost 10 billion by 2050. With 3.4 billion more mouths to feed and the growing desire of the middle class for meat and dairy in developing countries, global demand for food could increase by between 59 and 98 percent. This means that agriculture around the world needs to step up production and increase yields. But scientists say that the impacts of climate change—higher temperatures, extreme weather, drought, increasing levels of carbon dioxide and sea level rise—threaten to decrease the quantity and jeopardize the quality of our food supplies.

Read more: How climate change will alter our food

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Entering uncharted waters; ocean conservation is the key to the future. REUTERS PIC

THE ocean contributes US$1.5 trillion (RM6.05 trillion) annually to the global economy and assures the livelihood of 10 to 12 percent of the world’s population. But there’s another reason to protect marine ecosystems — they’re crucial for curbing climate change.

Read more: An ocean of resources to fight climate change

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