Focusing on 1960-2010, they found that the concurrence of all combinations of drought, heat wave intensity, and heat wave durations "have increased substantially in the south, southeast, and parts of the western USA".
The M h is based on the probability distribution of 11 individual hazards: earthquakes, volcanic eruptions, landslides, floods, storm surges, tropical cyclones, sand and dust storms, droughts, heat waves, cold waves, and wildfires.
Southern Plains/Southwest drought, heat waves, wildfires.
Drought, heat waves, and floods are examples of changes to weather and climate patterns that will have costs for human society.
It's main focus is to augment and strengthen the resilience of communities by improving their capacity to deal with inconsistent rainfall patterns, recurrent drought, heat waves, diseases outbreaks and other extreme weather events.
Scientists say climate change is increasing the frequency and intensity of extreme weather events like drought, heat waves, downpours, and intense storms.
It's like a meteorologist saying there is a 50% chance of rain, or to carry the analogy further, predicting with equal likelihood: flood, drought, heat-wave or blizzard.
The letter urges Congress to take action to substantially reduce greenhouse gases, highlighting disasters caused by climate change that have already affected the U.S., including drought, heat waves, wildfires and rising sea levels.
Almost 200 countries have agreed to negotiate a United Nations (UN) pact by the end of 2015 to combat global climate change, which most scientists expect will bring about more flooding, droughts, heat waves and higher seas.
Evidence of the human influence on climate is with us already, Dr. Trenberth noted, in terms of a general trend of more severe storms, extreme droughts, heat waves and wildfires.
The anecdotal evidence of climate change is everywhere: melting Arctic ice, new migration patterns for plants and animals and extreme weather events including record droughts, heat waves, epic floods and super storms.
