Around 55.5 million years ago, there was a time period with more than 5°C – 8 °C warmer global average temperature than today, which named “Paleocene-Eocene Thermal Maximum” (PETM). As a result, there were crocodiles and even crocodiles in the Arctic and the region was completely ice-free. Now, a new study suggests that if we keep burning fossil fuels at the current rate, the Earth will be again 8 degrees warmer within the next few hundred years. We’re going to face another PETM-like event soon.Continue reading We are pumping 10 times more carbon into the atmosphere than when there were palm trees in the Arctic
In this episode of NASA Explorers (Season 1 Episode 7), the scientists go back in time – by going underground. In the Arctic, a frozen layer of soil – permafrost, the “permanently” frozen earth – trapped dead plants and animals for thousands of years. As the climate warms, that soil is beginning to thaw, releasing carbon dioxide and methane – two harmful greenhouse gases which contribute to global warming.Continue reading Watch – NASA Explorers: Permafrost
An interesting map showing the locations of North Magnetic Pole since 1590. The North Magnetic Pole moves over time due to magnetic changes in the Earth’s core. Today, the Geographic North Pole (the point in the Northern Hemisphere where the Earth’s axis of rotation meets its surface, the northernmost point on the Earth) differs from the North Magnetic Pole by about 500 kilometers (311 miles).
If a magnetic compass needle is allowed to rotate about a horizontal axis, it would point straight down at the North magnetic
A lazy buzz phrase – ‘Is this the new normal?’ – has been doing the rounds as extreme climate events have been piling up over the past year. To which the riposte should be: it’s worse than that – we’re on the road to even more frequent, more extreme events than we saw this year.
We have known since the 1980s what’s in store for us. Action taken then to reduce emissions by 20
Last winter, unforgettable video footage online showed a starving polar bear, struggling in its Arctic hunting grounds. Because of global warming, the ice was thin and the food supply was scarce. The video generated a wellspring of sympathy for the plight of this poor
Such advocacy on behalf of wildlife usually focuses on species and the effects of human-caused climate change on their survival and wellbeing as the ecosystems on which they depend undergo drastic changes. Thus, we should act to save the polar bear – that is, the polar bear species – by doing what we can to preserve its natural ecosystem. I am fully behind this kind of advocacy. Anybody who cares about the future of our planet and its occupants should be.Continue reading We have an ethical obligation to relieve individual animal suffering
Global warming is accelerating – that’s a fact. In April 2018, the level of carbon dioxide in Earth’s atmosphere hit the highest point for the last 800,000 years. NASA and NOAA analyses suggest that long-term global warming trend continued in 2017. This year (2018), on March 17, the Arctic sea ice cover peaked at only 5.59 million square miles (14,478,033.54 km2), the 2nd lowest max on record (and the lowest max on record was, guess it, in 2017). 25 years of NASA and European satellite data shows that rather than increasing steadily, global sea level rise has been accelerating in recent decades. Cooler-than-normal years start to become rarer and by the 1990s, they’ve almost disappeared completely. Climate Central channel has put the 116 years history of global warming (1900-2016) into a just 34-second video. The result is terrifying. The “Temperature Circle” shows every nation on the Earth is now in the red, which means now every year is warmer-than-normal.
An island or isle is any piece of sub-continental land that is surrounded by water. It is believed that there are over 100,000 islands in the world. It’s difficult to put a figure to the exact number as there are different kinds of them in various water bodies including oceans, seas, lakes, and rivers. There is even an island within a lake that is situated on an island located in a lake on an island. Only 322 of them are larger than 1000 km2 (386 sq mi). Here are the top 18 largest islands on Earth. Why 18? Because this is the number of islands that have a land area of greater than 100,000 square kilometers (38,610 square miles).
The sea ice cover blanketing the Arctic Ocean and nearby seas thickens and expands during the fall and winter each year. It reaches its maximum yearly extent in February or March. This year (2018), on March 17, the Arctic sea ice cover peaked at only 5.59 million square miles (14,478,033.54 km2), the 2nd lowest max on record. It is only about 23,200 square miles (60,000 square kilometers) larger than the record low maximum reached in last year, on March 7, 2017.
This continues a trend of shrinking sea ice, with the four lowest Arctic sea ice maximum extents on record in the last four years. In the video published by the NASA Goddard Channel, Climatologist,
How far away can you get from everybody else on Earth? A video, published by RealLifeLore channel on YouTube answers this very question. The answer is “actually quite far”, there are a lot of extremely remote places left in the world and some of them have actually yet to be reached by anybody in all of history. The world is an enormous place. Here are the most remote places on Earth.
“Let’s imagine that you have been suddenly teleported to the following locations, and then, imagine how or if you would escape.”
According to the analyses of NASA and NOAA (National Oceanic and Atmospheric Administration) data, long-term global warming trend continued in 2017. According to NASA, Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880. NOAA scientists concluded that 2017 was the third-warmest year in their record, in a separate, independent analysis. Both agencies’ records remain in strong agreement: our planet is still getting warmer rapidly. The minor difference in rankings is due to the different methods used by the two agencies to analyze global temperatures. Both analyses also show that the five warmest years on record all have taken place since 2010.
According to NASA data, globally averaged temperatures in 2017 were 1.62 degrees Fahrenheit (0.90 degrees Celsius) warmer than 1951 to 1980 mean That is second only to global temperatures in 2016. However, 2017 was the warmest year without an El Niño. Earth’s surface temperatures in 2017 were the second warmest since