Biloxi Sun Herald: Recent research into climate change and plant growth indicates both people and their pets may have a tougher time with allergies in the future. Leaving aside the discussion about what is causing the warming of the Earth’s climate, it seems warmer temperatures and increased levels of CO2 in the atmosphere are helping plants grow faster. This can mean more pollen in the air to stimulate allergies. My nose is telling me the fall pollen season has started, and it may be worse this …