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Coronal mass ejections (CMEs) with angular width $> 30^{\circ}$ have beenobserved to occur at a higher rate during solar cycle 24 compared to cycle 23,per sunspot number. This result is supported by data from three independentdatabases constructed using Large Angle and Spectrometric CoronagraphExperiment (LASCO) coronagraph images, two employing automated detectiontechniques and one compiled manually by human observers. According to the twodatabases that cover a larger field of view, the enhanced CME rate actuallybegan shortly after the cycle 23 polar field reversal, in 2004, when the polarfields returned with a 40\% reduction in strength and interplanetary radialmagnetic field became $\approx 30\%$ weaker. This result is consistent with thelink between anomalous CME expansion and heliospheric total pressure decreaserecently reported by Gopalswamy et al.

On the enhanced coronal mass ejection detection rate since the solar cycle 23 polar field reversal