There is no set period of time or total amount of carbon emissions that we can stay below to ensure we stay safe. Katharine Hayhoe More Quotes by Katharine Hayhoe More Quotes From Katharine Hayhoe Cold and hot, wet and dry -- we experience natural weather conditions all the time. Katharine Hayhoe world But today, climate change is loading the dice against us, making certain types of extremes, such as heat waves and heavy rain events, much more frequent and more intense than they used to be. Katharine Hayhoe world