Humans and wild animals face new challenges for survival because of climate change. More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people’s livelihoods and communities. A warming Earth disturbs weather, people, animals and much more.

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Here, we look at three critical aspects of an increasingly warmer planet.

  1. More heat alters ice, climate and oceans

Change in temperature affects the Earth in following ways:

  • the frozen water on Earth is melting
  • Weather is getting more extreme. Heat waves are more frequent worldwide.
  • The oceans are getting hotter and are expanding because of which they are becoming more acidic. They are getting hotter because they absorb 90 percent of the extra heat in the climate.
  1. 2. Human life and prosperity suffer

Our health, economy, livelihoods, infrastructure and much more suffers

●       Climate change is a significant threat to agriculture.farmers is struggling to keep up with shifting weather patterns and increasingly unpredictable water supplies.

●       Warmer, polluted air affects our health.

●       Hot weather, flooding and other extremities of weather events damage infrastructure, put heavy burdens on electrical supplies and disrupt transportation

3. Natural habitats become hostile

Here are three well-documented examples of changes to the natural world:

  • The ice Arctic animals need is vanishingAs sea ice disappears, ice-dependent mammals such as walruses and polar bears struggle to survive. 
  • Coral and shellfish suffer the most. Coral reefs are very sensitive to small changes in ocean temperatures.
  • Forests are more prone to deadly infestations.

Effects of Climate Change

The climate change will continue through this century and beyond the next few decades and will have a long-lasting effect on the planet. It depends primarily on the amount of heat-trapping gases emitted globally, and how sensitive the Earth’s climate is to those emissions. Temperatures will continue to rise and will not be, uniform or smooth across the country or over time. The frost-free season will lengthen. The Arctic Ocean is expected to become substantially ice-free in summer before mid-century.

Future climate projections over the Earth that the recent trend towards increased heavy rainfall will continue. This trend is projected to appear even in regions where total precipitation is expected to decrease, such as the Southwest. Global sea level has been increased by about 8 inches since reliable record. Sea level will rise 1-4 feet by 2100. It is the result of added water from melting land ice and the expansion of seawater as it warms.

Droughts in the Southwest and heat waves are becoming more intense and cold waves less intense everywhere. Summer temperatures are expected to continue rising, and a reduction of soil moisture is anticipated for most of the western and central U.S. in summer. The intensity, frequency, and duration of North Atlantic hurricanes, as well as the frequency of the most vigorous cyclones, have all increased since the early 1980s.

 

Author: Malik Noureed Awan

© Copyright 2018, All Rights Reserved.

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Bitcoin is a worldwide payment system and cryptocurrency. It is the first decentralized digital currency, as the system works with no central bank or single supervisor. The network is peer-to-peer, and dealings take place between users directly, without any liaison.

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Blockchain

Network nodes confirmed Bitcoins transactions through the use of cryptography and recorded in public distributed ledger called a blockchain.

Cryptocurrency

It is the practice and study of techniques for secure communication in the presence of third parties called adversaries. Cryptography is about constructing and examining protocols that stop third parties or the public from reading private messages or various aspects of information security such as data confidentiality, data integrity, and authentication.

Why Bitcoins?

Bitcoins can be used to buy products anonymously. Also, worldwide payments are cheap and straightforward because bitcoins are not attached to any country or subject to regulation. Small companies may like them because there are no credit card fees. Some people buy bitcoins as an investment, hoping that their value will increase with time.

Buy on an Exchange
Several marketplaces called “bitcoin exchanges” let people purchase or sell bitcoins using various currencies. Coinbase is a top exchange, besides with Bitstamp and Bitfinex. However, security can be a worry; bitcoins worth tens of millions of dollars were stolen from Bitfinex when it was hacked in 2016.

Transfers
People can send bitcoins to each other using their computers or mobile apps. It’s similar to carrying cash digitally.

Mining
People battle to “mine” bitcoins using computers to solve challenging math puzzles. This is how bitcoins are created. Presently, a winner is rewarded with 12.5 bitcoins approximately every 10 minutes.

Owning Bitcoins

Bitcoins can be stored in a “digital wallet,” which exists either on a user’s computer or in the cloud. The wallet is a type of virtual bank account that allows users to send or receive bitcoins, pay for goods or save their money. Nothing like bank accounts, bitcoin wallets are not assured by the FDIC.

 

 

Types of wallet:

  1. Wallet in the cloud: Servers have been hacked. Companies have fled with clients’ Bitcoins.
  2. Wallet on a computer: You can accidentally delete them. Viruses could destroy them.

Anonymity

Though every bitcoin deal is recorded in a public log, identity of buyers and sellers are never revealed but only their wallet IDs. While that keeps bitcoin users’ transactions confidential, it also lets them purchase or sell anything without easily tracing it back to them. That’s why it has turned out to be the currency of choice for people virtually buying drugs or other illegal activities.

Rivals of Bitcoins:

Bitcoin’s competitors are also gaining grip, all speeding up to become the leading supplier of the future cashless world. Following are the competitors:

  1. Ethereum (ETH)
  2. Ripple (XRP)
  3. IOTA (MIOTA)
  4. Dash (DASH)
  5. Litecoin (LTC)

Future

No one knows the future of Bitcoin. It is mostly free to use, but some countries like Japan, China and Australia have begun weighing regulations. Governments are disturbed about taxation and their lack of control over the currency.

 

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Author: Malik Noureed Awan

© Copyright 2018, All Rights Reserved.

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