Why do daylight hours vary

As Earth orbits the sun it spins about its axis approximately once every 24 hours. But this is slowly changing with time. About million years ago there were only about 22 hours in a day. The Weather Guys. Skip to content. Home About Listen Live! Search for:. That can give the impression of how quickly we lose daylight.

The shortening of the length of day in terms of percentage change is at its peak in late October and early November around our latitude. The Weather Guys. Skip to content. Home About Listen Live! Search for:. Why has October been so stormy? Why does the rate for change of day length vary? The equinoxes happen around March 21 and September These are the days when the sun is exactly above the Equator, which makes day and night of equal length. It is always darkest before the dawn, and every passing of solstice marks a time of change.

As the Northern Hemisphere heads into the winter holiday season, it also marks the advent of longer days and the inevitable spring and summer.

The lengths of days and nights are constantly changing, but every one will get their time in the sun, at some point. This was originally posted on Elements. Sign up to the free mailing list to get beautiful visualizations on natural resource megatrends in your email every week. Tesla has reigned supreme among electric car companies, ever since it first released the Roadster back in It also plans to build six battery factories in Europe by and to invest globally in charging stations.

GM, the largest U. The company is making a big push into pure electric vehicles, with more than 30 new models expected by The American carmaker has laid out plans to invest tens of billions of dollars in electric and autonomous vehicle efforts in the coming years. When it comes to electric car company brand awareness in the marketplace, Tesla still surpasses all others. In fact, more than one-fourth of shoppers who are considering an EV said Tesla is their top choice.

Tesla recently surpassed Audi as the fourth-largest luxury car brand in the United States in BloombergNEF expects annual passenger EV sales to reach 13 million in , 28 million in , and 48 million by , outselling gasoline and diesel models 42 million. Oil still makes up the largest share of the global energy mix.

Here are the largest oil and gas companies by market cap in The pandemic brought strong headwinds for the oil and gas industry, and oil majors felt the blow. Global primary energy consumption fell by 4. For a brief period in April , the price of West Texas Intermediate WTI crude futures went subzero , marking the largest one-day price plunge since Pandemic-induced supply restraints from producers, in addition to rising energy demand from recovering economies, have sent nations scrambling for petroleum products.

Consequently, oil prices are resurfacing to pre-pandemic levels. Furthermore, U. Of course, the largest oil and gas companies are riding this wave of resurgence.

Using data from CompaniesMarketCap. Given that we often see their logos at gas stations, the largest oil and gas companies are generally quite well-known.