"Half the world’s nine million species are expected to be extinct by the end of this century."

scienceyoucanlove:

Sea Level Rise

Core samples, tide gauge readings, and, most recently, satellite measurements tell us that over the past century, the Global Mean Sea Level (GMSL) has risen by 4 to 8 inches (10 to 20 centimeters). However, the annual rate of rise over the past 20 years has been 0.13 inches (3.2 millimeters) a year, roughly twice the average speed of the preceding 80 years. 

Over the past century, the burning of fossil fuels and other human and natural activities has released enormous amounts of heat-trapping gases into the atmosphere. These emissions have caused the Earth’s surface temperature to rise, and the oceans absorb about 80 percent of this additional heat. 

The rise in sea levels is linked to three primary factors, all induced by this ongoing global climate change: 

Thermal expansion: When water heats up, it expands. About half of the past century’s rise in sea level is attributable to warmer oceans simply occupying more space. 

Melting of glaciers and polar ice caps: Large ice formations, like glaciers and the polar ice caps, naturally melt back a bit each summer. But in the winter, snows, made primarily from evaporated seawater, are generally sufficient to balance out the melting. Recently, though, persistently higher temperatures caused by global warming have led to greater-than-average summer melting as well as diminished snowfall due to later winters and earlier springs. This imbalance results in a significant net gain in runoff versus evaporation for the ocean, causing sea levels to rise. 

Ice loss from Greenland and West Antarctica: As with glaciers and the ice caps, increased heat is causing the massive ice sheets that cover Greenland and Antarctica to melt at an accelerated pace. Scientists also believe meltwater from above and seawater from below is seeping beneath Greenland’s and West Antarctica’s ice sheets, effectively lubricating ice streams and causing them to move more quickly into the sea. Moreover, higher sea temperatures are causing the massive ice shelves that extend out from Antarctica to melt from below, weaken, and break off. 

Consequences 

When sea levels rise rapidly, as they have been doing, even a small increase can have devastating effects on coastal habitats. As seawater reaches farther inland, it can cause destructive erosion, flooding of wetlands, contamination of aquifers and agricultural soils, and lost habitat for fish, birds, and plants. 

When large storms hit land, higher sea levels mean bigger, more powerful storm surges that can strip away everything in their path. 

In addition, hundreds of millions of people live in areas that will become increasingly vulnerable to flooding. Higher sea levels would force them to abandon their homes and relocate. Low-lying islands could be submerged completely. 

How High Will It Go? 

Most predictions say the warming of the planet will continue and likely will accelerate. Oceans will likely continue to rise as well, but predicting the amount is an inexact science. A recent study says we can expect the oceans to rise between 2.5 and 6.5 feet (0.8 and 2 meters) by 2100, enough to swamp many of the cities along the U.S. East Coast. More dire estimates, including a complete meltdown of the Greenland ice sheet, push sea level rise to 23 feet (7 meters), enough to submerge London and Los Angeles.

source

"There are no old roads to new directions."

Anonymous

(via stoweboyd)

This is a good one! It may even go in tandem with

“If you do not change direction, you may end up where you are heading.” - Lao Tzu

(via futuramb)

theatlantic:

Does Waze Mark the Beginning of the End of Israel’s Brain Drain?

Israel is the world’s second-largest destination for hi-tech venture capital, after Silicon Valley. Often called the “Start-up Nation,” part of Israel’s economic strategy has always been to sell start-ups to foreign companies. According to a recent Jerusalem Post article, over 95 percent of Israeli start-ups sell to foreign businesses. Traditionally, these acquisitions have required the start-up to move most of its operations overseas, often while keeping a small R&D center in Israel. This creates a complex dynamic: a large number of talented Israeli science and engineering professionals move abroad for economic opportunities, and many never come back. Fourteen percent of Israelis with doctorates in science and engineering have left Israel for at least three years, compared with 3.8 percent of those with degrees in the humanities and social sciences, and 17.7 percent of Israelis with a PhD in engineering choose overseas employment.

But Waze, an Israeli traffic navigation application that was bought by Google for approximately $1 billion last month, bucks the trend by staying put: One of its key demands was that its Israeli employees remain in Israel. Google agreed to this requirement while other interested buyers, including Facebook, did not. Waze’s exit was the fourth-largest buyout in Google’s history.

Read more. [Image: Nir Elias/Reuters]

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"There’s really nothing exciting about iOS 7 cuz Apple just copied Android’s Jelly Bean. Apple has stopped innovating."

Interesting comment from one of the speakers at the Mobile strategy meet up at Microsoft

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betype:

Inspirational quote print, nursery art, saying print, typography poster, colorful decor, retro wall art, Believe you can and you will A3 by handz

chartier:

The agony and the ecstasy of the new MacBook Air’s battery

myself:

I’ve had a new MacBook Air (13-inch, Core i7, 8GB RAM, 512SSD) for a week and put its notable enhancement through its paces. Apple’s new 12-hour battery indeed lives up to and surpasses the hype, but the machine has one drawback: incomplete mobility.