In 2011, a record 34 billion cubic tons of carbon dioxide were emitted from man-made sources. Half the emitted CO₂ stays in the atmosphere, about a quarter is absorbed on land (as trees grow, for example), and the remainder is absorbed by the ocean. Unsurprisingly, this incredible amount of carbon dioxide significantly changes the ocean environment. Over time, increased absorption of carbon dioxide in the oceans has led to ocean acidification, and overall warming has also led to warming of ocean waters – both changes impact marine ecosystems and the people who rely on them.

Two weeks ago, 1,600 venture capitalists, philanthropists, and entrepreneurs gathered at the 2012 Social Capital Markets Conference (SOCAP) to discuss the question at the heart of impact investing: How can investments do well while also doing good? Consistent with the in-depth nature of SOCAP, panels examined every aspect of capital flows, including how to structure a business, how to move an idea from a prototype to scale, and where to invest for maximum impact. The resulting conversations gave rise to multiple technical suggestions – and one paradigm shift. In order to do well and do good, multiple conference participants argued, investors must incorporate a gender lens into their portfolio.

Publish What You Fund recently released its 2012 Aid Transparency Index, an annual review of 43 indicators assessing to what degree information about policies, strategies, and individual projects are published for public consumption by aid donors. These indicators include things like disclosing the type of aid given (e.g., grant, loan, export credit, debt relief), the quality of disclosure policies, and the online presence of centralized, public databases of all the organization’s activities.

Today is the first “International Day of the Girl Child” – a day established last year by the United Nations to acknowledge the rights and unique challenges faced by young girls around the world.

The latest UN projections put the number of women under the age of 19 at about 1.18 billion today. Especially in developing countries (though not only) these young girls often face outsized barriers to happy, healthy, and productive lives.

The original version of this article, by Russell Sticklor, appeared at the Stimson Center.

Spend a day in Kathmandu, Nepal’s sprawling capital of four million people, and you’ll quickly notice what has long been a fact of life in this landlocked Himalayan country, and many other South Asian nations – no reliable electricity supply exists. Up to eight times a day, neighborhoods throughout the city suffer rolling power cuts due to load shedding, causing residents and businesses alike to either carry on in the darkness or rely on expensive, diesel-consuming generators to keep the lights on. Although the country’s civil war ended in 2006, carrying the promise of restored domestic stability and accelerated economic development, Nepal’s economy has remained hamstrung by an inconsistent energy supply, with only 40 percent of the population having access to electricity. This situation persists despite the fact that the country sits on top of a virtual goldmine – an estimated 80,000 megawatts (MW) of untapped hydroelectricity, of which it has harnessed a scant 700 MW.

This is part of a seven-part “environmental challenges and opportunities” series featured in the University of Minnesota’s fall issue of Momentum magazine.

As world population careens toward nine billion, all the planet’s systems will be strained. Lowering fertility rates is a complex endeavor, and no one path leads directly there. Poverty, access to contraception, education, job prospects, cultural mores – all of these influence family size. So addressing any of them, or a combination, can help. Solutions abound, at least on a relatively small scale, such as conservation programs that include family planning components.

The water-energy-food nexus seems to be garnering more and more attention in the media and elsewhere, and it’s easy to see why: it’s a relatively simple way to illustrate how interconnected the world is today and the kind of domino-like effects that scarcity can have.

The original version of this article, by Manipadma Jena, appeared on Inter Press Service.

Parvez Ahmad Dar climbs three hours to reach the hilltop, generator-equipped tourist center in Ajaf village, 35 kilometers from Srinagar, to recharge his mobile phone.

The 46-year-old president of the Wular Valley People’s Welfare Forum is in high demand as an activist and organizer – he cannot allow the long power outages in northern India’s Kashmir Valley to cut off communication with his constituency.