Scientists agree that humans are primarily the cause of global warming, and the outcome might be humans changing to a diet base on insects. A theory is being discussed about the possibility of instead of raising livestock, insects should replace them. The theory goes, why not change our diet to insects which contains protein that are the same as meat. Thus, raising livestock that requires huge amount of resources would be replaced with smaller farms of insects. This idea sounds plausible, but it will be hard for people that ate meat all their lives to suddenly change their diet to insects. Although it may sound disgusting eating insects, there are people in different countries that eat insects as a delicacy. Switching to "minilivestock" farming would greatly reduce the competition for land and water. Humans would not have to devote as much resources to raising the insects. This would be an unusual but effective way of countering the effect of global warming. Since global warming is depleting our food supply that is needed for our survival, any different kinds of innovations would help human survival rate going up if the effect is prominent. To understand how global warming negatively impacts the environment, the root of the problem must first be found. The global warming phenomenon is explained by many theories. One theory says that global warming is part of the earth's natural cycle, and human happens to live in the time period of earth's temperature warming up. Although this theory sounds plausible, it is not supported by enough scientific data. The theory that is supported by a lot of scientific evidence is that global warming is caused by human activities which include the burning of fossil fuels, raising livestock, and many others are contributing to earth being heated up. The scientific data of human's carbon footprint and use of natural resources have built up a case supporting that humans are indeed contributing significantly to global warming. If these activities are not reduced, then global warming will continue at its current rate, if not faster, which will threaten the chances of humans survival by decreasing land size, changing weather patterns, and shortage of food and water.

One of the effects of global warming is the decreasing of land size as a result from sea levels rising. Hotter temperature is causing ice caps to melt, resulting in rising sea levels. The water that results from the melting of the ice caps has no other place to go but into the ocean. The ocean has no room other than to invade the space of coastal lands. These effects can be measured scientifically, and the data supports that coastal lands are getting smaller. Peter M. Vitousek, a professor at Stanford University in the Biological Sciences Department, describes the connection between land an human's survival by saying, "human land use/land cover change has transformed one-third to one-half of Earth's ice-free surface" (Vitousek). If approximately a half of the world's land has been used by humans in some way, this data clearly indicates the importance of land use. Most of the agricultural lands and architectures essential to human survival would be underwater from the rise in sea levels. It took many years to achieve these feats, and it will all be wiped out if humans do not stop doing activities that are contributing to global warming. 

Also, carbon emission is one of the biggest culprit of speeding up global warming. More carbon released into the atmosphere results in a warmer temperature by trapping heat on earth and not letting it escape. Lands near urban areas are more vulnerable to warming up faster because scientists say, "these areas are already near the threshold to begin with due to their heat-retaining thermal properties" (Conlon). Urban areas have a lot of buildings built closely to each other. This results in an insulation-like area that keeps heat in, because carbon tends to trap heat in. Vehicle's carbon emission also contributes to urban areas being one of the earliest victims to global warming. Humans need land for cities and ports. This is not to say cities and carbon use should be stopped altogether, rather it should be used in a conservative way. If global warming is not contained, its effect would wipe out these precious land and human's ability to survive.

Another effect of global warming on human survival is the change in weather patterns. If global warming continues at its current rate, then more drought is going to be expected. Droughts are already popping up regularly at the present. Scientist are citing countries that suffer from severe drought as an example of the difficulties of living in one. Droughts affect the amount of crops that can be grown, and the amount of fresh water supply there is. A team of scientists carried out an experiment in Houston, Texas, to map out future weather conditions there. They used a land surface model (LSM) simulation to show that, "extreme heat events in the United States are projected to become more frequent and intense as a result of climate change" (Conlon). The LSM simulations uses past data with current ones to map out what might happen in the future. The prediction from the simulation in Houston, Texas, was that in the year 2040 extreme heat is going to occur more frequently. This result can be applied to places similar to Texas to study climate change. Areas near the equator that already experience hot weather, cannot withstand any more increasing temperature. It would be fine if the temperature is increasing at a moderate rate as humans would be able to adapt and change with the temperature. The problem is that temperature are not increasing slowly, rather it is increasing rapidly. Humans would be impossible to live in such extreme conditions. 

The rise in temperature due to global warming would also effect the health of the public. Prolong exposure to elevated temperature can result in heat stroke and dehydration. The human body would not be able to function properly due to not being adapted to drastic increase in temperature. The survival of humans is deeply connected to the temperature around us. Optimal temperature not only keeps human alive, but plants and animals too. Reptiles, for example, are cold blooded. Their body temperature is regulated by the temperature outside. Too extreme of a temperature would kill it. Some reptiles are essential in the food chain and keeps populations of other animals under control. If one population of food chain regulating reptiles dies off, there would certainly be an overpopulation of another. Global warming shows how humans and weathers are interconnected, and that it is impossible for humans or animals to survive in extreme conditions.

The last effect of global warming is the decrease in food and water. These two resources are the most basic needs for human survival. Global warming is decreasing crop productions and drying up fresh water resources. This is a concern because human's food comes from crops or livestock grown on farms. Farms need land for production to meet the demands of the consumers. With the human population also growing at an unprecedented rate, more farm land will be needed to support it. With evidence showing that available fertile lands are being covered up by the rising sea levels, global warming is directly effecting the food supply. On the other hand, raising livestock is also contributing to global warming. The livestock industries causes deforestation and land grazing of livestock contributes to inequalities in the environment. A group of scientists characterizes the livestock industries as, "among the most ecologically harmful of all anthropogenic activities" (Abbasi). There is a direct competition between livestock and humans for lands for food and water. Adding to this fact is global warming is decreasing these vital resources. 

Global warming is affecting practically all aspects of human life. It is a never ending cycle of destructions of the environment, and it might end up with extinction of not only humans, but all living species. Global warming is causing lands to be submerge under the growing ocean levels, hotter weathers, and loss of food and water. These are all vital components of what sustains human's survival, and the loss of any of these would guarantee humans would not be able to survive the effects of global warming.

