The phrase "alone have caused" is correct and usable in written English.
It can be used to emphasize that something by itself is responsible for a particular outcome or effect.
Example: "The changes in policy alone have caused a significant increase in productivity."
Alternatives: "solely have led to" or "only have resulted in".
But the record is clear that we are not equally responsible: an astonishing 90 companies alone have caused two-thirds of global carbon emissions.
One can get an idea by looking at the list of 90 companies which alone, have caused nearly two-thirds of all the climate pollution generated since the dawn of the industrial age.
There are so many factors that can cause problems for the developing fetus; and to make women feel that they have alone have caused those problems and can prevent them places upon them a terrible burden of guilt and responsibility.
Can Schettino alone have caused all of this?" In a hearing before a parliamentary committee on Wednesday, the chief executive of Costa Cruises, Pier Luigi Foschi, repeated his assertion that the captain did not have approval to change the ship's routing.
Start with the fact that, as economist William Bahr has estimated, America's accumulated trade deficits since 1991 alone have caused our economy to be 13percentt smaller than it otherwise would be.
According to the Federal Register, urbanization alone has caused 340 species to become endangered.
The partially reclaimed independence of driving slowly west alone has caused my work to shift again.
The airport disruption alone has caused havoc in Thailand's tourism industry and disrupted Southeast Asian commerce.
The authors of a paper describing the case said it was unclear whether Zika alone had caused the paralysis, or whether the combination of dengue and Zika had done it.
That figure which was calculated using the 1988 rate of $80,000 as the cost of legal defense is a conservative estimate, since inflation alone has caused legal fees to swell to more than $120,000 today.
The satellite had been the size of a school bus and weighed six and a half tons and that fact alone had caused considerable anxiety as it became increasingly clear that its trajectory would take it over populated areas in Canada and the United States.
