Never miss a story

Get subscribed to our newsletter


×
If humans cause larger temperature increases, we could lose more than a third or even half of all animal and plant species. Pixabay

Researchers have revealed that one in three species of plants and animals could face extinction by 2070 because of climate change.

The study, published in the journal Proceedings of the National Academy of Sciences, estimated broad-scale extinction patterns from climate change by incorporating data from recent climate-related extinctions and from rates of species movements.


“By analysing the change in 19 climatic variables at each site, we could determine which variables drive local extinctions and how much change a population can tolerate without going extinct,” said study researcher Cristian Roman-Palacios from University of Arizona.

“We also estimated how quickly populations can move to try and escape rising temperatures. When we put all of these pieces of information together for each species, we can come up with detailed estimates of global extinction rates for hundreds of plant and animal species,” Roman-Palacios added.

For the findings, the researchers analysed data from 538 species and 581 sites around the world and focused on plant and animal species that were surveyed at the same sites over time, at least 10 years apart.

They generated climate data from the time of the earliest survey of each site and the more recent survey. They found that 44 per cent of the 538 species had already gone extinct at one or more sites. The study identified maximum annual temperatures — the hottest daily highs in summer — as the key variable that best explains whether a population will go extinct.

Surprisingly, the researchers found that average yearly temperatures showed smaller changes at sites with local extinction, even though average temperatures are widely used as a proxy for overall climate change. “This means that using changes in mean annual temperatures to predict extinction from climate change might be positively misleading,” said study researcher John J. Wiens. Previous studies have focused on dispersal — or migration to cooler habitats — as a means for species to “escape” from warming climates.

However, the authors of the current study found that most species will not be able to disperse quickly enough to avoid extinction, based on their past rates of movement. Instead, they found that many species were able to tolerate some increases in maximum temperatures, but only up to a point.

They found that about 50 per cent of the species had local extinctions if maximum temperatures increased by more than 0.5 degrees Celsius, and 95 per cent if temperatures increase by more than 2.9 degrees Celsius. “If we stick to the Paris Agreement to combat climate change, we may lose fewer than two out of every 10 plant and animal species on Earth by 2070,” Wiens said.

ALSO READ: Know Why the Vietnamese Governement Turns to Private Companies for Public Services Needs

“But if humans cause larger temperature increases, we could lose more than a third or even half of all animal and plant species, based on our results,” Wiens added. (IANS)


Popular

Photo by Jonathan Borba on Unsplash

With the baby keeping you busy all day and night, your skincare takes a backseat.

When you become a mother, you tend to forget about your own needs because you are so focused on your child. With the baby keeping you busy all day and night, your skincare takes a backseat. It's not always changes in skin texture and looks post-pregnancy are a bad thing, but not taking care of your skin may lead to acne, melasma, stretch marks, puffy eyes, and even dark circles. Syed Nazim, Dermatologist, Aesthetic and Hair Transplant Surgeon, Royal Lush Skin Clinic Saket, New Delhi, shares simple and easy tips for you to follow, to get a glowing post-pregnancy.

* Cleansing: As you sleep, your skin goes through a renewal cycle, by dispensing toxins and debris. So you only need a light-textured cleanser to wash your face with a face wash that is suitable for your skin type.

* Steam: Take steam for 2-3 days a week, it will help you to open up your clogged pores.

* Scrub & face pack: Use a face scrub, to remove the dead skin cells, scrub your face for like 5 minutes and wash it with normal tap water. It will help you to make your skin softer and radiant, leave the mask until it dries off.

* Toner & moisturizer: Apply toner to your face, look for clarifying toners that rebalance your pH to maintain the pH value of your skin. In the end, you only have to moisturize your face, to give hydration.

* Steal baby products: Baby products are always mild in nature so that the baby's sensitive skin doesn't have to compromise. They are created to lock moisture in babies skin. So, you can also use them. Whether it's a body oil, lotion or cream, apply some on your skin every time you're applying them on your baby. If you do this, you can flaunt your skin, this way, you don't have to dedicate a specific time every day for your skincare.

Keep Reading Show less
Photo by Valeriia Kogan on Unsplash

Colorless chemicals were developed and mixed in varying ratios to dye hair.

A couple of years ago, finding a strand of grey hair meant visiting the parlor to cover it up. Women and men refused to admit their age, and refused to let it show. Be it moustache, eyebrows, or hair on the head, it was dyed a luscious black, or reddish-brown for those who wanted to go natural. Today, the trend of coloring hair has nothing to do with age. Young boys and girls sport bright colors and hairstyles, which is now a marker of how modern one can be.

This notion of modernity associated with neon streaks and an almost gothic look originates from the ancient Egyptian civilization, where it was considered fashionable to look different from the natural features one was born with. Kohl, lipstick, perfume, and makeup were the inventions of those who hoped to live even after death. Likewise, they were the first people to discover hair dye. Initially, they dyed their hair black, to cover the grey. They used compounds that were extracted from plants, but some of them were lethal. So, they took to extracting the color from fermented leeches.

Keep Reading Show less
Photo by Wikimedia Commons

One of the bookshop at Daryaganj, Chandni Chowk, Delhi.

The history of Daryaganj goes back to the era of Mughal dynasty, and so its history is as old as the old city of Shahjahanabad, now Chandni Chowk. Interestingly, this market was known as Faiz Bazaar in the Mughal era and was considered as an important commercial place.

In fact, at that time this area was very posh, and had beautiful houses on both sides of a stream from a hauz (meaning, water storage tank) flowing down the centre. Not only this, trees were lined up for shade and it looked like a marvellous garden had been turned into a market.

Keep reading... Show less