Environmental Engineering Reference
In-Depth Information
TABLE 24.2
Climate Chaos Impacts o n Food and Biofuel Production
Factor
Description
Heat
Increased temperatures cause heat stress in food crops which can significantly
diminish their productivity and lead to plant death and crop failure.
Hot winds
Increased temperatures and dry winds evaporate soil moisture and increase the
need for freshwater irrigation.
Water scarcity
Water, the critical resource for sustainable food production, has passed its tipping
point as global warming causes food crops to need more water but water in many
growing areas' water sources have been degraded, depleted, or diverted.
Rising sea levels
Oceans will consume millions of acres of prime cropland on coasts and river deltas
and tidal and storm surges will destroy millions of acres of cropland from sea salt
invasion.
Ocean acidity
Dissolved CO 2 in the oceans diminish fisheries, destroy shellfish, and dissolve
coral reefs that protect coasts and estuaries.
Higher ocean surface
temperatures
Heat creates the energy that intensifies storms, hurricanes, and typhoons. Heat
also changes the rainfall patterns and leads to drought and severe forest fires
experienced in the western United States.
Extended spring and fall
Spring is starting a week earlier and fall lasts an extra week, enabling pest
vectors—bugs, fungi, molds, mildews, viruses, and weeds—to multiply earlier
and sometimes survive the winter.
Rain patterns
Shifts in rain patterns will cause huge losses of cropland that lack the
infrastructure for irrigation.
Wildires
Range lands and forests are especially vulnerable to heat and drought, and winds
drive catastrophic wildfires such as those in California in 2008 and 2009.
Loss of snow pack and
glaciers
Snow packs are down 50% which means faster runoff and heavy flooding in the
spring. Reservoirs, creeks, and rivers may be only half full when irrigation is
needed later in the growing season. Melting snow packs and glaciers mean less
river water for irrigation and human use. California announced a net zero
irrigation water allocation for many farmers in the San Joaquin Valley.
Blowing dust
While the U.S. Midwest experienced severe flooding in 2008, Texas and Oklahoma
lost millions of acres of crops to drought and blowing dust. Dust decimates crops,
amplifies drought by removing soil moisture, and erodes thin topsoil.
they can be cultivated year-round. Algaculture produces pure O 2 while sequestering CO 2 ,
so it provides a positive atmospheric footprint while conserving scarce fossil resources.
Green solar provides a portable energy source and grows biomass with solar energy
stored in forms that may be used for a variety of purposes:
People —organic protein in food
Animals —organic protein in fodder
Fowl —natural protein for birds
Fish —natural protein in fish feed
Land plants —organic nitrogen fertilizer
Fire —high energy algal oil for cooking and heating
Cars —carbohydrates refined to gasoline/ethanol for transportation
Trucks and tractors —high energy clean, green diesel
Trains, boats, and ships —high energy clean diesel
Planes —high energy, clean aviation gas and jet fuel
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