The National Climate Assessment and underlying technical reports that support it also detail climate change impacts that affect Texas and the remainder of the Southwest including:

  • Drought. Large parts of Texas are projected to see more days with no precipitation, similar to the 2011 drought in which Texas experienced more than 100 days above 100 degrees. Rates of water loss were double the long-term average, depleting water resources and contributing to more than $10 billion in direct losses to agriculture alone.
  • Failing Aquifers and water shortages. Expanded drought will cause aquifer levels to decline and threaten the ability to maintain agricultural production in semi-arid regions in Texas, Oklahoma and New Mexico. Smaller snowpacks in the mountains and reduced per capita water storage will make urban areas of the region more vulnerable to water shortages. Diminishing water supplies and rapid population growth are critical issues in the region.
  • Increased incidents of allergies. From Texas to Montana, more frost-free days have altered flowering patterns, increasing the length of the pollen season for ragweed by as many as 16 days.
  • Coastal losses. Coastal counties in Texas and along other areas of the Gulf Coast already face potential losses from hurricane winds, land subsidence, and sea level rise.