The US weather system is not the only one affected by climate change.
The state of Alaska, which covers the northern half of the state, has also experienced more extreme weather.
The National Weather Service in Anchorage has recorded more than 5,300 lightning strikes and more than 8,000 tornadoes in its last two years.
In a climate-change-related phenomenon called “seismic activity”, the state has seen significant increases in the frequency of tornadoes, and more frequent lightning events.
These phenomena have increased in frequency in the past 10 years.
It’s an area where the weather has traditionally been cold and snowy.
“It’s a very polar environment,” said Tom Trenberth, the National Weather Forecast Center meteorologist.
“We have some of the warmest winters in the United States, and we’re getting more snow in the mountains.”
The last time the state had so many storms was in December 2016, which is when the ice in the Arctic was thawing.
A combination of cold air, the ice and snow were forcing the weather system into a mild phase.
But as a result of this change, the snowpack in Alaska has declined.
“Now we have the polar vortex, and that’s what causes the storms,” said Mike Sorenson, the meteorologist for the National Oceanic and Atmospheric Administration (NOAA).
“It just melts that ice and that meltwater into the air, and then it creates the storms that we see.”
In addition to a mild climate, the state is experiencing the effects of a warming ocean, according to scientists at the University of Alaska Fairbanks.
Climate change is also affecting the way sea ice melts, which has caused the ice to melt.
The sea ice is a thin layer of ice that floats on the ocean.
As the climate warms, it can expand and break apart.
Scientists think this may be the result of climate change, and warmer ocean temperatures.
In Alaska, the amount of sea ice at the coastline has increased by about 4 million square kilometres (1.5 million square miles), and that is increasing by about 30 per cent each year.
This is the biggest change to the sea ice in US history.
“Sea ice has always been quite thin in Alaska, but it has always shrunk over time,” said Sarah Rolfes, a scientist at the National Snow and Ice Data Center.
“There’s just been a huge acceleration of sea-ice loss over the last 30 years.”
According to NASA, about 25 per cent of the country’s ice is covered by sea ice.
“Our ice coverage has been dropping by about half a metre a year since the early 2000s,” Rolfe said.
The amount of ice on the coastline in Alaska is at its lowest level in about 40 years.
Alaska’s sea ice coverage is now at its third lowest point in the satellite era, according the National Ice Center.
The region’s sea level is also rising faster than the rest of the United State.
According to the US Geological Survey, the Arctic sea ice extent has increased at a rate of about 4.6 million square metres (16 million square feet) per year since 2000.
At the same time, the sea level has decreased by about 1.7 millimetres (0.9 inches) per century, or about 0.8 millimetre (0 and 1/4 inches) an hour.
In 2017, the region was already seeing the first annual record-low sea level for a single month.
“This is an extreme and unusual event,” said Dan Ruhle, a researcher with the University’s Department of Atmospheric Sciences.
“And that is a signal that climate change is affecting our climate.”
He noted that the Arctic has experienced a record amount of snowfall in the last five years.
“The climate is changing, and now we’re experiencing the impacts of a warmer ocean and a warmer atmosphere.”
The amount and rate of change The weather is changing faster than in the rest.
The number of extreme events happening in the atmosphere has doubled since the beginning of the 21st century, according NOAA.
As of May 2017, there were 1,942 severe weather events in the world, compared to 1,204 in 2016.
The increase is a result, in part, of the increase in the amount and frequency of severe weather that occur, the Weather Channel reported.
These events are often more severe than they were in previous years.
They can include severe weather such as thunderstorms, tornadoes and floods.
The frequency of these events is also increasing.
“In the past, extreme events would happen a few times a year,” Ruhl said.
“But now we see more of them a month out, a year out.”
He added that the number of severe events is increasing at a higher rate than the number that were previously recorded.
It is also becoming more intense and severe as the climate continues to warm.
For instance, this past