Excellent study material for all civil services aspirants - begin learning - Kar ke dikhayenge!
SHARE:
Keeping oceans healthy key to blue economy
Read more on - Polity | Economy | Schemes | S&T | Environment
- Oceans as the focus for SDG 14: With the race to 2030 underway, the thrust to look at the health of oceans has increased, both in international and national policies. The next decade is crucial to achieving the Agenda 2030 of sustainable development goals (SDGs). It is also crucial in accelerating progress in sustainable development of the oceans. As reported by the Sustainable Development Report 2019, India still has significant challenges to overcome with respect to Sustainable Development Goals SDG 14 - Life under Water and ranks 115 out of 162 countries in the overall SDG Index. With many countries gearing to deploy blue economy framework within the growth trajectory, the need to overlay blue economy with Agenda 2030 is imperative for the success of both.
- Blue economy: The significance of oceans for the global economy is immense and the progress of blue economy will depend on the achievement of sustainable development. There are various definitions of blue economy. What underpins every definition is the core comprised of economic growth, social development, security, and sustainable development. These core issues of blue economy are prioritised based on the needs and the strategic focus of every country's macroeconomic and socio-political framework.
- Talking of oceans: These cover 72% of the earth's surface and nearly 40% of the world's population lives within 100 km of coastline. Shipping is responsible for more than 90% of the trade between countries and is very important for the economic growth of various countries. The shipping sector is also vital for energy and food security, with a majority of exports and imports of conventional fuels and bulk commodities travelling through Sea Lanes of Communication (SLOC).
- The global oceans based economy is estimated at $US3 trillion a year, which is around 5% of global gross domestic product (GDP).
- The Food and Agricultural Organisation (FAO) estimates that blue economy industries provide for the livelihoods of over 820 million people globally in diverse fields including maritime shipping, transport, energy generation, mining, construction, trade, tourism, research, and ecosystem services.
- Global economy depends on oceans: The significance of oceans for the global economy is immense and the progress of blue economy will depend on the achievement of sustainable development. A good example of this symbiotic relationship is the fisheries sector, wherein, 85% of the global population involved in fisheries and aquaculture, and 75% of the global fishing vessels are from Asia.
- Food security management: Increasing ocean acidification, temporal changes and unsustainable fishing pose high risks for the fisheries sector and in turn for food security. According to a paper on the High Level Panel on Sustainable Blue Ocean Economy focusing on the 'Future of food from the sea', the ocean is a major food source and is projected to become an essential component in the global food palate. With rising population and income, the demand for ocean-derived food is set to grow. The paper states that certain estimates highlight "that nearly 500 million metric tons (mmt) of animal meat will be required to feed the global population in 2050 (FAO 2018, 2009) — food from the sea has a large potential to meet this need".
- Ocean health and climate change: Oceans are the world's heat and carbon sinks and rapid and devastating changes to their ecosystem will lead to irreparable damages to ocean ecology. This will in turn lead to significant economic and social losses both for global and national economies.
- The coral bleaching at the Great Barrier Reef in Australia is a visible example of altering marine ecosystems due to climatic changes.
- It is estimated that unabated climate change could cause revenue losses of over 90% to coral reef tourism. In addition, some West African countries are forecasted to see fish stocks decline by 85%.
- Report show that oceans have absorbed 93% of the extra energy from the enhanced greenhouse effect, with warming now being observed at depths of 1,000 m. As a consequence, this has led to increased ocean stratification (prevention of water mixing due to different properties of water masses), changes in ocean current regimes, and expansion of depleted oxygen zones. Many marine species are on the verge of entering the endangered and extinction lists.
- The jellyfish: One marine species, the jellyfish, is thriving in the warm and polluted waters across the globe. In the past decade, massive jellyfish colonies and groupings have appeared out of nowhere, creating significant problems at coastlines and ports. These sightings are becoming more prominent with rising temperatures, which has led to an influx of jellyfish blooms. Huge annual jellyfish blooms have been cropping up not just across the Mediterranean, but also the Black Sea, the Gulf of Mexico, and the Yellow and Japan Seas. Power plants in Scotland, Japan, Israel and Florida, and also a desalination plant in Israel, were forced to shut down because jellyfish were clogging the water inlets. The most extraordinary blooms have been those occurring in waters off Japan since 2002, costing the country's fish industry billions in economic losses.
- How they bloom: The minimal to almost no requirement for oxygen ensures jellyfish's expansion even in polluted waters. This has also led to researchers looking for ways to combat marine pollution by studying the genetic makeup of these creatures. The jellyfish phenomenon also raises concerns on how the cyclic impact of warming oceans could impact coastal infrastructure, leading to significant economic losses and also raising the risk of accidents in critical economic infrastructure that in turn may lead to loss of lives.
- Summary: The time left to act is short and the goal is immense. SDG 14 - Life under water - provides a mechanism to balance economic development within the the sustainability context. The IPCC 2019 report estimated that climate-induced declines in ocean health will cost the global economy $428 billion per year by 2050 and $1.98 trillion per year by 2100. The magnitude and inequity of these losses are highly sensitive to future greenhouse gas emissions across sectors of the ocean economy. There is thus an urgent need to restore and repair ocean health.
COMMENTS