It is no secret that heavy rain can cause flooding. However, it can be surprising to learn how little water is required to create significant impacts.
As anyone who carries a water bottle knows, water is heavy. In fact, just one cubic foot of fresh water weighs 62.4lbs (28.3kg). Multiplied many times over, raging floodwater can carry away or destroy most things in its path. Moving at just 4-mph, water has enough force to cause structural damage to an average home.
Flowing floodwaters can also pose a danger when hiking or driving. According to NOAA, it only takes six inches of fast moving water to knock a person off their feet. Twelve inches of water can sweep a small car off the road and eighteen to twenty-four inches can float most large vans and SUVs.
Since it is impossible to know how deep water is just by looking at it, it is best to err on the side of caution. As the saying goes, “Turn around, don’t drown!”
Earth Day is a time to focus on the environment. These days, however, it is hard to discuss the topic in the US without politics coming into play. While there have always been debates about land and resource uses, the issue today is more polarized then ever with the division almost always running down party lines. Those in favor of environmental protection and conservation are usually Democrats and those pushing for economic and commercial development tend to be Republicans. This type of tribal divide, however, was not always the case. There is a long history of Republicans taking action to protect the environment.
In 1864, President Abraham Lincoln, a Republican, signed the Yosemite Land Grant. This piece of legislation gave Yosemite Valley and the nearby Mariposa Big Tree Grove to the state of California. Championed by Senator John Conness (R-CA), it was first time in US history that land was designated for preservation and public use.
This historic legislation set the precedent for Yellowstone, which spreads across Wyoming, Montana, and Idaho to become this country’s first official National Park in 1872. Established by Congress, it was signed into law by President Ulysses S. Grant, a Republican. Yosemite eventually also became a National Park in 1890 under President Benjamin Harrison, also a Republican.
Coming into office in 1901, Theodore Roosevelt, a Republican from NY, became known as the “Conservation President.” Using the power of the presidency, he protected approximately 230 million acres of public land. According to the NPS, this included the establishment of 150 national forests, 51 federal bird reserves, 4 national game preserves, 5 national parks, and 18 national monuments.
While also steadfast in his belief about utilizing the country’s natural resources, he understood the necessity of ensuring their sustainability. As such, he created the US Forest Service in 1905 as a division of the Department of Agriculture. He wanted to conserve forests for continued use.
By 1916, there were 35 National Parks and monuments across the US. To manage them all, President Woodrow Wilson – a Democrat – signed the Organics Act, creating the National Parks Service as a bureau within the Department of the Interior.
In the 1970’s, the environment returned to the national agenda, but with a new focus. After the 1969 Cuyahoga River fiire and the oil spill off Santa Barbara, CA, the rampant industrial pollution and deterioration of the nation’s natural environment became apparent. These human-caused disasters occurred around the same time as the publication of Earth Rise, a photograph taken by NASA astronaut William Anders as he looked back toward the planet. The image was a powerful reminder of how also fragile and unique the Earth really is. Together, these events led to the first Earth Day in 1970, where millions of people across the US came out to demand protection for the environment. As a result, President Richard Nixon – a Republican – created the EPA. Soon afterwards, his administration passed the Clean Air Act, the Clean Water Act, and the Endangered Species Act.
By the 1980’s, the hole in the ozone became an international environmental concern because of the adverse effects it could have on human health and the environment. Under the UN’s Montreal Protocol, governments around the globe agreed to phase out the use of chlorofluorocarbons (CFCs) and halons. When released into the atmosphere, these gases, formerly found in aerosol spray cans and refrigerants, reduced the ozone’s capacity to absorb ultraviolet radiation. President Ronald Reagan, a Republican, signed the international agreement in 1988.
In the 1990s, climate change was beginning to be recognized as a serious environmental problem. To address this issue, the UN organized the 1992 Earth Summit in Rio de Janeiro, Brazil. There, President George HW Bush – a Republican – signed the United Nations Framework Convention on Climate Change (UNFCCC). This international environmental treaty was the first step on the long and often bumpy road toward the Paris Climate Agreement of 2015.
History, however, has shown this argument to be largely false. In the past, some people saw National Parks as government land grabs that would hinder development. Today, they are among the most beloved landscapes in the country. They also generate millions of dollars every year from tourism for the local businesses that surround them. Regulations for clean air and water also had many positive outcomes. Not the least of which are the improved health of millions of Americans and the reclamation of polluted areas now open to new uses and clean sustainable development.
The lessons of history are clear. So, why is there such a polarized divide in this country over environmental issues? Who is benefiting from this rift? These are some important questions to consider not just on Earth Day, but everyday. After all, as the saying goes, everyday is Earth Day.
Our global temperature continued its upward trend last month with March 2018 marking the fifth warmest March ever recorded on this planet. This latest milestone comes on the heels of the three warmest Marches on record – 2015, 2016, and 2017.
According to a report by NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for the month – over both land and sea surfaces – was 56.39°F. That is 1.49°F above the 20th-century average. March was also the 399th consecutive month with a global temperature above its long-term norm. That means the last time any month posted a below average reading was December 1984.
While heat dominated most of the planet this March, some places were particularly warm, including Alaska, northeastern Canada, and most of Asia. These soaring global temperatures are largely attributed to the long-term trend of human-caused climate change. In fact, La Niña conditions – the cooling counterpart of El Niño – were present in the Pacific during March.
However, for many people in the US, especially in the eastern part of the county, this March was relatively cold. To put this disparity into context, consider that the contiguous United States constitutes less than 2% of the total surface of the Earth. This detail highlights the fact that climate change is a complex global phenomenon that involves much more than the short-term weather that is happening in our own backyards.
Year to date, the first three months of 2018 were the sixth warmest such period of any year on record. Global temperature records date back to 1880.
March 2018 was the fifth warmest March on record for the planet. Credit: NOAA
Torrential rain events and the flooding they cause are nothing new. Global warming, however, is helping to make them more likely.
Heavy rainfall trends in NYC. Credit: Climate Central
According to the most recentNational Climate Assessment, heavy precipitation events have increased in both frequency and intensity across the United States. While there are seasonal variations with different regions, the greatest increases have been observed in the northeast.
Climate scientists attribute this increase in heavy precipitation to our warming world. As greenhouse gases warm the atmosphere, the air is able to hold more water vapor. More specifically, according to the Clausius–Clapeyron relation, for every increase of 1°F, the saturation level of the atmosphere increases by about 4%. That means there is more evaporation from oceans, rivers, and lakes, and therefore more water vapor available to condense and fall as precipitation.
Heavy rain events have a number of consequences, including an increased risk of both flash floods and river floods. This, in turn, is a threat to life and property. Over the long-term, it also affects insurance rates and property values. According to NOAA, individual billion-dollar flooding events (excluding tropical cyclones) in the U.S. have added up to $39 billion in losses since 2010.
As our global temperature continues to rise, experts say we should expect to see more extreme rain events, even in areas where overall precipitation is projected to decrease. In other words, when it rains, it will likely pour.
Downpours have been getting more frequent and intense across the US. Credit: Climate Central and NCA4
An intense rainstorm swept through New York City on Monday. With bands of torrential downpours, it unleashed more than half a month’s worth of rain in just a few hours.
According to the NWS, 2.82 inches of rain was measured in Central Park. While that is an impressive total, it did not break the daily rainfall record for the date. That honor belongs to April 16, 1983 when 3.29 inches of rain was reported. New York City, on average, gets 4.50 inches of rain for the entire month of April.
The heavy rain caused flash flooding and disrupted travel across the city. Torrents of water poured into several subway stations through leaks in the ceiling and down the entrance/exit steps. During the morning commute, the MTA announced that several stops, including the 145th St station on the Number 1 line and the 42nd St-Bryant Park stop on the F and M lines, would be bypassed because of “excess water”. Significant delays and cancellations were also reported at the area’s airports.
This type of heavy rain event, according to NOAA, is expected to become more common in the northeast as global temperatures rise and precipitation patterns change.
Heavy rain sends water cascading down the steps of the 145th St Station of the No. 1 train in NYC. Credit: Josh Guild/Twitter.
It felt more like June than April in New York City on Friday. The temperature in Central Park soared to 82°F, marking the city’s first 80-degree day of the year.
Topping out at 22°F above average, the day was more than unseasonably warm. However, it was not a record breaker. That honor belongs to April 13, 1977, when the mercury soared to 88°F. The low temperature was 60°F, which ironically is the normal high for the date.
This spring heat was the result of a ridge in the jet-stream that allowed warm southern air to move further north than it normally would at this time of year. While the balmy conditions are forecast to remain in place through Saturday, temperatures are expected to plummet into the 40s on Sunday. So, enjoy it while it lasts, but get ready for weather whiplash!
A summer preview for NYC. Credit: The Weather Gamut
There will never be another hurricane by the name of Harvey, Irma, Maria, or Nate.The World Meteorological Organization (WMO) has announced that it is officially retiring these names from its list of Atlantic cyclones.
According to the National Hurricane Center, 86 storm names have been retired since the current naming system began in 1953. This year marks the fifth time that four or more names have been retired from a single season. Three of those -1955, 1995, and 2004 – each had four names retired. In 2005, five names were retired – the most ever from one hurricane season.
Starting in 2023, when last year’s list is recycled, the names Harvey, Irma, Maria, and Nate will be replaced by Harold, Idalia, Margot, and Nigel. Some other notable retired Atlantic Basin storm names include: Andrew, Katrina, Irene, and Sandy.
The 2018 Atlantic hurricane season officially begins on June 1.
Four names from the 2017 Atlantic hurricane season are retired. Credit: WMO
The phrase, “April showers bring May flowers “ has been around for centuries. It is derived from a poem written in the 1500s by Thomas Tusser – an English poet and farmer. This old adage, however, does not hold true in the northeastern United States.
Coming on the heels of the snowy months of winter, April typically produces more rain than snow. Many people, therefore, consider it a rainy month. Since water is necessary for the overall survival of plants, they also associate it with the bloom of flowers in May. Nevertheless, according to botanists, perennials – the plants that go dormant in winter and re-grow in the spring – are more dependent on the soil moisture derived from winter snowmelt and the long-term local precipitation pattern.
In the end, though, temperature is the most significant factor in determining when a flower will bloom. As soon as the weather becomes more spring-like, flowers will start to blossom, regardless of how much it rained in April or whatever the prior month was. That said, a “false spring” – a warm spell that triggers flowering but is followed by a hard frost – can kill the fragile blooms.
It is also worth noting that April is not typically the wettest month of the year for most places in the US. In New York City, July, on average, takes that honor because of the downpours associated with its strong summer thunderstorms.
Climate change is a complex scientific subject with a plethora of data-rich reports that detail its causation and diverse impacts. However, as important as all that information is, not everyone responds to facts and figures or charts and graphs. That is why art, which taps into human emotion and tells visual stories, can help create new pathways to understanding this critical issue that affects us all.
On Saturday, April 7, I will be giving a presentation titled, The Art and Science of Climate Change,at the Ann Street Gallery in Newburgh, NY.Blending my two passions, it introduces the basic science of climate change and explores how artists from around the globe are reacting to its various impacts and possible solutions.
Currently on view in the gallery is Anthropocene, a group exhibition in which I am showing pieces from my Under Glass series. Curated by Virginia Walsh, the show has been well covered in the press, including a blog post on Climate You and a nine page feature in Issues in Science and Technology,a magazine published by The National Academies of Sciences, Engineering, and Medicine.
If you are in the area, please stop in and say hello. The program begins at 2PM and it is also the final day of the exhibition. The Ann Street Gallery is located at 104 Ann Street, Newburgh, NY.
“Memory: 41 years” is on view in the Anthropocene exhibit. Credit: Melissa Fleming
A spring snowstorm slammed the northeastern United States on Monday. Coming on the heels of a mild Easter weekend, it felt like weather whiplash across the region.
Here in New York City, the storm dumped 5.5 inches of snow in Central Park, setting a new daily snowfall record for the date. The previous record of 2 inches had been in place since 1871. The storm also marked the snowiest April day the city has seen in 36 years.
Despite the ground being relatively warm, the heavy, wet snow was able to accumulate because it came down very quickly. La Guardia Airport reported a snowfall rate of 2 inches per hour.
The city, on average, gets 0.6 inches of snow for the entire month of April.