The phrase "ameliorate the effect of" is correct and usable in written English.
It can be used when discussing ways to improve or lessen the impact of a particular situation or condition.
Example: "The new policy aims to ameliorate the effect of climate change on local agriculture."
Alternatives: "mitigate the impact of" or "reduce the consequences of".
One of the first projects in this country to ameliorate the effect of roads was on Florida's Alligator Alley on I-75.
Our results suggest that compensatory mechanisms exist, which ameliorate the effect of trisomy in the Ts65Dn mice.
The large potential of the soil organic carbon (SOC) pool to sequester CO2 from the atmosphere could greatly ameliorate the effect of future climate change.
Neonatal nurses have the opportunity to promote this development and ameliorate the effect of other developmental risk factors the baby is likely to experience.
Screening of preimplantation embryos for aneuploidy (PGS) may ameliorate the effect of female age on reproduction: improving pregnancy rates and decreasing the chance of multiple birth and miscarriage.
Since diabetic embryopathy is mediated probably through membrane lipoperoxidation, This study was designed to find if omega-3 fatty acids could ameliorate the effect of high glucose over the dysmorphogenesis of whole rat embryo in culture.
Higher levels of viewership may ameliorate the effects of the recent economic slowdown, which forced the networks to lower significantly the prices paid for commercial time.
Dr. Madelyn E. Butler, president elect of the Florida Medical Association, said, "We are trying to ameliorate the effects of national health care reform on the State of Florida".
In May of 2012, Kathleen Sebelius, the Secretary of Health and Human Services, formally announced that the Obama Administration was committed to finding new treatments to prevent Alzheimer's and ameliorate the effects of the disease.
Sure Start at that stage was meant to be focused on disadvantaged families, offering them carefully chosen, evidence-based services to help ameliorate the effects of poverty on children.
Given that elephants in the wild are now exhibiting aberrant behaviors that were long observed in captive elephants, it perhaps follows that a positive working model for how to ameliorate the effects of elephant breakdown can be found in captivity.
