I sadly agree with Gyrate. We are our own worst enemy. Yet the evolution of society is toward global unity and a common heritage. And the process has been going on for greater than a century with the first global treaties such as Geneva and Berne conventions and the creation of the Universal Postal Union and similar organizations. Not global in adoption, but any country could be a signatory to it, and one is often considered a pariah if they do not.
The pace increased with the United Nations and other organizations such as the IMF, WTO, etc. Regular people got in on the act with the creation of events such as Earth Day. The photos of the pale blue dot have helped increase a global consciousness. But how many have seen them and truly understood their significance?
Yet as much as the hippies and Zeitgeist would love to see an overnight transition to some kind of Gaia consciousness, we are not one. They are over 20 major languages with 50 million plus speakers. And an estimate of over 6000 spoken languages still extant (though many are critically endangered.) There are at least 500 separate cultures across the planet - from shared music, cuisine, fashion, along with religious, spiritual and secular practices. And that number seems to be increasing rather than decreasing as new subcultures are constantly being created.
And I think that is a good thing. A global outlook is important, but I do not want it at the expense of our beautiful diversity. I love discovering and experiencing other cultures - music, food, art based on centuries old heritages, or lately, watching the fusion of many into something original.
The beauty of the internet, IMHO, is that is allows both tasks to be accomplished. It allows one to be a global citizen and interact with equals across the planet, and follow global issues. Yet it also allows access to all these cultures, both as participants and as ‘tourists’.
I do believe humanity will have a shared awareness one day, and hopefully sooner than later, but we will never become one single culture with a single language. (My greatest pet peeve with Star Trek was its overly homogenous planets. I imagine if intelligent life exists out there, it will be as fractured as ours.)
I do expect within the next century some form of true global democracy, at least a World Parliament.
As for strategies, there are several groups out there promoting one form of globalization or another. From the Catholic church to the Venus Project. Pick whichever one you feel the strongest affinity towards and work toward their goals.