kiuchitatsuro:

The NY Times Sunday Review | The Opinion Pages
Save the Endangered Globe - What’s lost when we lose sight of globes?

mohandasgandhi:

UN: farmers must produce 70% more food by 2050 to feed population

The United Nations has completed the first global assessment of the state of the planet’s land resources, finding in a report that a quarter of all farmland is highly degraded and warning the trend must be reversed if the world’s growing population is to be fed.

The UN Food and Agriculture Organisation (FAO) estimates that farmers will have to produce 70% more food by 2050 to meet the needs of the world’s expected 9-billion-strong population. That amounts to 1bn tonnes more wheat, rice and other cereals and 200m more tonnes of beef and other livestock.

But as it is, most available farmland is already being farmed, and in ways that decrease its productivity through practices that lead to soil erosion and wasting of water.

This means that to meet the world’s future food needs, a major “sustainable intensification” of agricultural productivity on existing farmland will be necessary, the FAO said in its report, State of the World’s Land and Water Resources for Food and Agriculture.

[…]

The report found that climate change coupled with poor farming practices had contributed to a decrease in productivity of the world’s farmland following the boom years of the “green revolution”, when crop yields soared thanks to new technologies, pesticides and the introduction of high-yield crops.

Thanks to the green revolution, the world’s cropland grew by just 12% but food productivity increased by 150% between 1961 and 2009.

But the UN report found that rates of growth had been slowing down in many areas and today were only half of what they were at the peak of the green revolution.

It found that 25% of the world’s farmland was now “highly degraded” with soil erosion, water degradation and biodiversity loss. Another 8% was moderately degraded, while 36% was stable or slightly degraded and 10% was ranked as “improving”.

[…]

The report found that water around the world was becoming ever more scarce and salinated, while groundwater was becoming more polluted by agricultural runoff and other toxins.

In order to meet the world’s water needs in 2050, irrigation must become more efficient because most systems perform well below their capacity, the FAO said.

The agency called for new farming practices such as integrated irrigation and fish-farm systems, as well as overall investment in agricultural development.

The investment deemed necessary until 2050 is $1tn (£642bn) for irrigation water management for developing countries alone, with another $160bn for soil conservation and flood control.

Related: According to Oxfam, the climate is set to worsen the food crisis

‘The size and age of the Cosmos are beyond ordinary human understanding. Lost somewhere between immensity and eternity is our tiny planetary home. In a cosmic perspective, most human concerns seem insignificant, even petty. And yet our species is young and curious and brave and shows much promise. In the last few millennia we have made the most astonishing and unexpected discoveries about the Cosmos and our place within it, explorations that are exhilarating to consider. They remind us that humans have evolved to wonder, that understanding is a joy, that knowledge is prerequisite to survival. I believe our future depends powerfully on how well we understand this Cosmos in which we float like a mote of dust in the morning sky.’

~ Carl Sagan, Cosmos (1980)

(via Crouching Tigers, Flying Sharks: Stunning Images From “Planet Earth” Collector’s Edition : TreeHugger)

somepsychedelia:

I would just like to fall away with the flowing water..

constellations

‘Can you find the Summer Triangle? It’s not hard to find this famous triangle of stars this time of year from northern locations. Just look straight up after sunset and find three of the brightest stars in the sky that nearly form a triangle. Then compare these stars to sky images like the one shown above, or hold up a smart phone running a good sky labelling application. The three stars that form the vertexes of the Summer Triangle are Vega, Deneb, and Altair. Pictured above is a 360 degree full sky projection framing not only the Summer Triangle but the great arch of our Milky Way Galaxy. The image was taken last week in front of a small river that encircles the historic town of Sant Llorenç de la Muga in Catalonia, northeastern Spain.’

(via APOD: 2011 August 10 - The Summer Triangle Over Catalonia)

Carl Sagan - The Pale Blue Dot (by FunkensteinJr)

Consider again that dot. That’s here. That’s home. That’s us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every “superstar”, every “supreme leader”, every saint and sinner in the history of our species lived there - on a mote of dust suspended in a sunbeam.

The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.

Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe:, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we’ve ever known.

via randi.org

via en.wikiquote.org

(via People Under 35 Have Never Seen Normal Global Temperatures | ThinkProgress)

“If you’re younger than 26, you have never seen a month where the global mean was as cold as the 161 year average,” observes Robert Grumbine. In contrast, “there are no periods as long as even 20 years of continual below reference temperatures.” He finds that the period 1880-1940 seems to best represent a stable long-term average for global temperatures. If that’s the case, then the “last time the global mean was below the climate normal was March, 1976. If you’re 35 or younger, you have never seen a global mean below climate’s real normal.”

One of Carl Sagan’s most pertinent messages for humanity (by XXXSDESDEXXX)

‘Those worlds in space are as countless as all the grains of sand on all the beaches of the Earth. Each of those worlds is as real as ours. In every one of them, there’s a sucsession of incidence, events, occurences which influence its future. Countless worlds, numberless moments, an immensity of space and time. And our small planet, at this moment, here we face a critical branch-point in the history. What we do with our world, right now, will propagate down through the centuries and powerfully affect the destiny of our descendants. It is well within our power to destroy our civilization, and perhaps our species as well. If we capitulate to superstition, or greed, or stupidty we can plunge our world into a darkness deeper than time between the collapse of classical civilization and the Italian Renaissaince. But, we are also capable of using our compassion and our intelligence, our technology and our wealth, to make an abundant and meaningful life for every inhabitant of this planet. To enhance enormously our understanding of the Universe, and to carry us to the stars.’

We Are Here: The Pale Blue Dot [HD] (by Backlash787)

‘The Pale Blue Dot is a photograph of planet Earth taken by Voyager 1 from a record distance, showing it against the vastness of space. Read by Carl Sagan.’