  We evaluate the two point functions of the stress energy from the largest
string simulations carried out so far. The two point functions are used to
calculate the cosmic microwave background (CMB) and cold dark matter (CDM)
power spectra from local cosmic string models for structure formation. We find
that our spectra differ significantly from those previously calculated for both
global and local defects. We find a higher Doppler peak at $l=400-600$ and a
less severe bias problem than for global defects. Spectra were obtained for a
variety of network energy-decay mechanisms.
