Over the past 30 years global temperatures have risen expeditiously at around 0.2 degrees Celsius per decade (Stern, 2007). Polar ice is melting, glaciers around the globe are in retreat, and storms are increasing in intensity. Ecosystems around the world already are reacting, as plant and animal species struggle to adapt to a shifting climate, and new climate related threats emerge (Pew Center, n.d.). This is affecting our world food supply, which is highly dependent on specific climate conditions.
What determines the temperature of the Earth is the balance between energy from the Sun and its loss back into space. Certain atmospheric gases, known as greenhouse gases, such as water vapor, carbon dioxide, methane, and nitrous oxide absorb infrared heat that would normally be radiated into space. The greenhouses gases increase the average temperature of the Earth; this is known as the greenhouse effect (Maslin, 2014). The greenhouse effect is essential for survival and without it the Earth would be at least 30 degrees Celsius colder, making the average temperature in the tropics about -10 degrees Celsius (Maslin, 2014). The link between the temperature of the Earth and atmospheric gases is tested through studies of the past climate. Evidence is taken from ice cores drilled in both Antarctica and Greenland. As snow falls, it contains plenty of air, which is then compacted as it forms ice, trapping some of the air. Scientists can measure the percentage of GHGs that were present in the past atmosphere over the last half a million years by extracting these air bubbles that were trapped in the ancient ice. And by examining the oxygen and hydrogen isotopes in the frozen water that make up ...
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...s the fish species most commonly cultured in aquaponic systems. Though channel catfish, largemouth bass, rainbow trout, pacu, common carp, Asian sea bass, and Murray cod are only a few of the many fish used in these systems. Hydroponics systems can be used to increase production in crops such as tomatoes, cucumbers, eggplant, basil, cilantro, parsley, and more (SRAC, 2006).
In conclusion, climate change is negatively impacting our world food supply because of the over abundance of greenhouse gases emitted into the atmosphere. By implementing solutions such as reducing our carbon footprint, ending deforestation, improving energy consumption, and using new technologies such as hydroponics and aquaponics the world food supply in turn will improve. Specifically the crops, livestock, and ocean organisms that are currently in danger will get back on the road to recovery.
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