A New NASA Map Shows Spring Is Coming Earlier Each Year

iStock
iStock

Climate change is shifting Earth’s seasons. Winters are getting shorter, and the warmth of spring has started to arrive earlier and earlier, messing with the timing of processes like animal migrations and the budding of new plant growth. In a series of graphics spotted by Flowing Data, the NASA Earth Observatory shows how much earlier new leaves are arriving in some parts of the U.S., and how much earlier they reach full bloom.

The data comes from a 2016 study of U.S. national parks, so the maps only cover seasonal changes within the park system. But since there are so many parks spread across the U.S., it’s a pretty good snapshot of how climate change is affecting the timing of spring across the country. The map in green shows the difference in “first leaf” arrival, or when the first leaves emerge from tree buds, and the map in purple shows the arrival of the first blooms.

A map of the U.S. with a colored grid showing where leaves are coming earlier
Joshua Stevens, NASA Earth Observatory

Around 75 percent of the 276 parks analyzed in the study have been experiencing earlier springs, and half had recently seen the earliest springs recorded in 112 years. In Olympic National Park in Washington, the first leaves are now appearing 23 days earlier than they did a century ago, while the Grand Canyon is seeing leaves appear about 11 days earlier. National parks in the Sierras and in Utah are seeing leaves appear five to 10 days earlier, as are areas along the Appalachian Trail. Some parks, however, particularly in the South, are actually seeing a later arrival of spring leaves, shown in dark gray in the graphic.

A map of the U.S. with a colored grid showing where blooms are coming earlier
Joshua Stevens, NASA Earth Observatory

The places that are witnessing earlier first blooms aren't always the ones with extra-early first leaves. The Appalachian Trail is blooming earlier, even though the first leaves aren't arriving any earlier. But in other places, like Olympic National Park, both the first leaves and the first blooms are arriving far earlier than they used to.

“Changes in leaf and flowering dates have broad ramifications for nature,” National Park Service ecologist John Gross explained in the Earth Observatory’s blog. “Pollinators, migratory birds, hibernating species, elk, and caribou all rely on food sources that need to be available at the right time.” When temperatures get out of sync with usual seasonal changes, those species suffer.

[h/t Flowing Data]

The Most Popular Viral Video in Each State

GetCenturyLink
GetCenturyLink

Viral videos have been around long enough for some to be considered classics. For the map below, the internet service provider GetCenturyLink rounded up the most iconic YouTube videos from the platform's 13-year history and broke them down by state.

After making a list of the most popular viral videos from the classic YouTube era through today, analysts looked at Google Trends’s YouTube search data to see which videos were being watched the most in which parts of the country. The "Wedding Entrance Dance" video is the viral content with the most widespread appeal, dominating searches in 11 states. "Charlie Bit My Finger", the video on the map with the most overall views at 860 million, topped the list of favorite bits in Illinois, Indiana, Iowa, North Carolina, and Texas. Meanwhile "Potter Puppet Pals" is the most beloved viral video in Utah, the state with highest percentage of Harry Potter fans based on how many residents like the Harry Potter Facebook page.

Many of the videos on this map were uploaded prior to 2010, but that doesn't mean the viral video is a fading art form. The YouTube landscape just looks slightly different than it did a decade ago, with ASMR and unboxing videos often topping the trending lists.

Before embarking on a nostalgia-field YouTube binge, check out the map below to find your state's favorite video.

Map of viral videos.
GetCenturyLink

Key for map of viral videos.
GetCenturyLink

Here's How Daylight Saving Time Affects Your Part of the Country

Andy Woodruff
Andy Woodruff

Daylight saving time was created to benefit Americans, but not every part of the country is affected equally. Within the Eastern time zone, for instance, the sun rises a whole 40 minutes earlier in New York City than it does in Detroit. To illustrate how daylight saving time impacts sunrise and sunset times around the county, cartographer Andy Woodruff published a series of helpful maps on his website.

Below, the map on the left depicts how many days of reasonable sunrise time—defined as 7 a.m. or earlier—each part of the country is getting. The regions in the yellow sections have the most days with early sunrises and the darker parts have the fewest. On the right, the second map shows how many sunsets past 5 p.m. we’re getting each year, which appear to be a lot more abundant

Next, he visualized what these sunrise and sunset times would look like if daylight saving were abolished completely, something many people have been pushing for years. While our sunset times remain pretty much the same, the mornings start to look a lot sunnier for people all over the country, especially in places like West Texas.

And for those of you who were curious, here’s what America would look like if daylight saving time were in effect year-round. While mornings would look miserable pretty much everywhere, there’d at least be plenty of sunshine to enjoy once we got off work.

You can tinker with an interactive version of the daylight saving map on Woodruff’s blog.

All images courtesy of Andy Woodruff.

This article originally ran in 2015.

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