The phrase "activity is a significant" is correct and usable in written English.
It can be used when discussing the importance or impact of a particular activity in a specific context.
Example: "In the context of team building, activity is a significant factor in fostering collaboration and communication among members."
Alternatives: "activity plays a crucial" or "activity is an important".
97% of working climate scientists say the temperature is rising, and human activity is a significant contributing factor.
So there you have it: Only one of the potential contenders (Chris Christie) seems willing to say that human activity is a significant cause of climate change.
Walker also referenced the Open Source Systems, Science, and Solutions Foundation (OSS), which says: 97% of working climate scientists say the temperature is rising, and human activity is a significant contributing factor.
What some would dispute is whether human activity is a significant contributor.
The second question asked: "Do you think human activity is a significant contributing factor in changing mean global temperatures?" So what constitutes "significant"?
Soil erosion in diverse ecosystems and landscapes modified by human activity is a significant global problem (Toy et al. 2002; Blanco and Lal 2008; Liu et al. 2011).
Five of those senators voted that human activity was a significant cause of climate change.
Exxon also gave a total of $868,150 to Republican senators who voted against another symbolic resolution that human activity was a significant driver of climate change.
It's worth remembering that although many UK banks were bailed out in the financial crisis, capital markets activity was a significant factor in only one - RBS.
Of the six items of which the GSS is comprised, the seasonal changes in weight and appetite were significant risk factors, whereas the seasonal change in social activity was a significant protective factor of metabolic syndrome.
Lack of physical activity was a significant predictor for 8 indicators of poor HRQOL.
