Complex sentence: The Trust pioneered the systematic recording of data on wildlife and the environment in the capital, its "Biological Recording Project" becoming the semi-independent "Greenspace Information for Greater London", known as GIGL.
Split into simpler sentences: The Trust pioneered the systematic recording of data on wildlife and the environment in the capital. Its "Biological Recording Project" became the semi-independent "Greenspace Information for Greater London", known as GIGL.