In this case its suggested temperatures are rising because they are drawing heat from deep within the oceans. Its really that simple. Causes Facts Climate Change Vital Signs Of The Planet Global warming could alter rainfall wind and heat patterns around the world. Why is the earth warming . The earth is warming faster and for a longer period than it ever has in the last. If the earth warms polar ice caps could melt. Changes in the way land is used also have an impact on climate. Decades of NASA data show the Earth is warming. Resulting in sea level rises which would endanger many people since some of these areas are heavily populated. We humans have been. It is also why every year perhaps even every decade wont necessarily be warmer than the last. As climate change heats up the planet winters are warming faster than summers. The researchers say warming over the past century is a direct result of CO2 emissions and other greenhouse gases. The agricultural b...