In today's world, the only thing that seems to be constant is change. This same concept applies to global warming and agriculture. The average temperature appears to be rising, which appears to be caused by human activity adding carbon dioxide to the air. As temperatures rise, maintaining temperatures and providing water to farmers to irrigate crops will become increasingly difficult. With the challenge of global warming taking hold, the world will need to make better use of water, carbon dioxide fertilization, global trade and seed technology. Causes of Global Warming Global warming, which is an increase in the average temperature of the earth, has many factors we must consider what is the cause of the increase in temperature. According to Utah researchers Eldredge and Biek, the earth is currently in an ice age with temperatures colder than they have been throughout the earth's history. Going through cycles of higher or lower than average temperatures is very normal for the earth as many different factors contribute to temperature, including ocean and atmospheric temperatures, volcanic eruptions, and the level of carbon dioxide in the atmosphere (Eldredge and Biek, 2010). Knowing that the earth goes through cycles of warm and cold climate makes it difficult to have a definitive answer as to how much human activities actually contribute to the warming of the earth. Considering the amount of carbon dioxide humans emit into the atmosphere, nearly all scientists agree that human activity is having a profound effect on global warming. Stanford researchers Lobell, Schlenker and Roberts present data showing an increase of 0.13 degrees Celsius every decade since 1950 with an expected increase in temperature every year due to carbohydrates... middle of paper... technology instilled in crops it will be very important. Finding the correct location to plant certain varieties is half the battle to profitable yields. Planting C3 crops in cooler climates around the world while planting C4 crops in warmer climates where they will be more beneficial is an important step that will need to be taken. The development of different varieties, including drought resistance, also helps combat the ever-changing climate. Conserving nutrients in the soil will lead to higher yields and can be achieved with new innovations such as no-till farming. Not until agriculture keeps micronutrients in the soil because the soil is not worked as hard as if a plow had to go through it. Because the soil remains in a place with secondary moisture without tillage and nutrients are not lost when the soil is turned and exposed to sunlight.