The phrase "an already changing" is correct and usable in written English.
It can be used to describe a situation or condition that is in the process of change at the present moment.
Example: "We are witnessing an already changing landscape in technology, where innovations emerge daily."
Alternatives: "a currently evolving" or "an ongoing transformation".
The long-delayed $1 billion arena — which as the home of the transplanted Brooklyn Nets returns a major-league sports team to Brooklyn for the first time in more than half a century — has become a metaphor for the trials of change in an already changing borough.
The 13th century saw an already changing technology undergo many dramatic changes.
In this case, the process of implementation and spread was constructed as an incremental change, embedded in an already changing system.
Farmers blame two factors: impact of an already changing climate and a lack of investment in seeds, irrigation and other inputs.
Money has become a key issue in the prelude to the Copenhagen talks, as large numbers of poorer countries demand that richer nations collectively pay hundreds of billions of dollars to help them cope with the consequences of an already changing climate.
That alone makes it worth addressing and working to minimize the impacts of an already changing climate.
The concept of a "book" will change under the pressure of iPad-type devices, just as concepts of what constitutes a magazine or a newspaper are already changing.
But in reality, a lot is already changing.
The film focuses on love, loss, and how artificial intelligence may alter our perceptions of those abstract ideas--as well as how our conceptualization of a "relationship" is already changing. .
This last data grab including detailed imaging of the comet's surface is a bonus after a mission that is already changing theorists' views about how comets and planets arose early in the solar system.
Natural disasters join a long list of ways a shifting climate is already changing the face of our planet.
