Not only does he not doubt macroevolution (if you think he does, please supply a quote, in context), but YOU have stated that macroevolution is real, because speciation, by definition, is macroevolution.
Here are excerpts from an article from 2006 by John Allen of the National Catholic Reporter,a liberal publication. The article is entitled "Benedict's thinking on creation and evolution". I disagree with Allen's definition of a creationist as someone who believes in a strictly literal reading of Genesis.
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Since we live in a sound-bite culture, let's get straight to the bottom line: Benedict XVI is not a "creationist." He does not believe in a strictly literal reading of the Book of Genesis, nor has he ever made any reference to teaching "creation science" in schools. A member of the prestigious secular French Académie des Sciences Morales et Politiques (inducted in 1993 along with then-Czech President Vaclav Havel as one of only twelve foreign nationals), Pope Benedict has no desire to launch a crusade against modern science.
Nor is Benedict XVI really an advocate of "intelligent design" in the American sense, since intelligent design theorists typically assert that data from biology and other empirical sciences, by itself, requires the hypothesis of a designer. Benedict may have some sympathy for this view; he has questioned the evidence for "macro-evolution," meaning the transition from one species to another on the basis of random mutation and natural selection. Ultimately, however, he sees this as a debate for scientists to resolve. His concern cuts deeper, to the modern tendency to convert evolution into "a universal theory concerning all reality" that excludes God, and therefore rationality, as the basis of existence. In contrast, Benedict insists upon the fundamental conviction of Christian faith: "
In principio erat Verbum - at the beginning of all things stands the creative power of reason."
Benedict is clear this is a question which "can no longer be decided by arguments from natural science."
With respect to Pope John Paul II's famous 1996 formula that evolution is "more than a hypothesis," therefore, it's meaningless to ask whether Benedict XVI agrees or disagrees. Ever the professor, he would insist upon clarifying what precisely is meant by "evolution," whether it's being evaluated on a scientific or philosophical basis, and so on.
What does seem clear, however, is that Benedict worries that with its seeming
nihil obtstat for the theory of evolution, the church may inadvertently have accelerated the diffusion of a worldview which holds that it's pointless to ask questions which can't be settled by laboratory experiments, and that chance and meaninglessness are the ultimate laws of the universe. In that sense, one suspects Benedict would affirm that evolution is indeed "more than a hypothesis" -- for better, and for worse. >
< While Benedict does not believe it is the church's role to settle scientific debates, that doesn't mean he lacks his own views. Most notably, Benedict has doubts about what he calls "macro-evolution." ("Micro-evolution" refers to developmental changes within a species, "macro-evolution" is the transition from one species to another on the basis of mutation and selection.)
Ratzinger outlines his thinking in a November 27, 1999, lecture delivered at the Sorbonne entitled "The Truth of Christianity," which is published in his 2003 book
Truth and Tolerance.
"No one will be able to cast serious doubt upon the scientific evidence for micro-evolutionary processes. R. Junker and S. Scherer, in their 'critical reader' on evolution, have this to say: 'Many examples of such developmental steps [micro-evolutionary processes] are known to us from natural processes of variation and development. The research done on them by evolutionary biologists produced significant knowledge of the adaptive capacity of living systems, which seems marvelous.' They tell us, accordingly, that one would therefore be quite justified in describing the research of early development as the reigning monarch among biological disciplines.
Within the teaching about evolution itself, the problem emerges at the point of transition from micro- to macro-evolution, on which point Szathmáry and Maynard Smith, both convinced supporters of an all-embracing theory of evolution, nonetheless declare that: 'There is no theoretical basis for believing that evolutionary lines become more complex with time; and there is also no empirical evidence that this happens.'"
This distinction between "micro" and "macro-evolution" is apparently one Ratzinger began to make in the 1980s, after hearing a series of lectures at the Gustav Siewarth Academy, a small Catholic academy in Germany's Black Forest. Tassot told NCR that a German Catholic intellectual named Alma von Stockhausen, the founder of the Gustav Siewarth Academy, has said that Ratzinger concluded macro-evolution is "impossible" after this experience.
It is worth repeating, however, that whatever his personal views, Benedict XVI is unlikely to render an official judgment on what he sees as a scientific question. In a 1992 Vatican press conference presenting the Catechism of the Catholic Church, he said that it is not the function of the church to pass judgment on the scientific merits of evolutionary theory. >