1 . Climate experts are having a debate: they are asking whether the UK should focus more on adapting to climate change or trying to prevent it.
David Frost holds that preventing climate change is no longer an option, given the extent to which the Earth now appears certain to heat up. Despite the many policies which attempt to stop climate change, it now seems unavoidable that the world will pass the 1.5℃ or 2℃ increases in average global temperature that are likely to induce large changes in the climate.
David Frost is right in that our economies are growing so much slower than we had anticipated. Our emissions can drop if we reduce emissions per unit of GDP we create—but they can also drop if the GDP is lower. Lower growth means it is more feasible (可行的) for us to achieve targets such as Net Zero, but it also makes it less environmentally urgent to achieve those targets so soon, because we are and have been emitting a lot less carbon than we had anticipated.
The UK authority finds the debate about adaptation difficult. Partly, it is because some activists claim that adaptation is not feasible. They say that climate change will end human civilization, potentially leading to the entire extinction of the human race.
However, the mainstream view of many scientists and economists, who work on climate change, is that global warming could lead to large changes in our environment. Significant parts of the world currently heavily populated could become effectively uninhabitable while other parts currently unsuitable for high-density human habitation would become more habitable. Meanwhile, at higher temperatures both climate and weather are likely to become more volatile—including increased frequency of storms, flooding and other weather events.
These would be significant changes, but it would be perfectly feasible for humans to adapt to them. The issue is not whether adapting would be technically feasible, but whether it would be desirable either in ethical or practical terms. Are we willing to accept a materially warmer world, with humans living in different parts of it? Are we willing to accept the possible extinctions of certain species and the greater flourishing of those currently less successful and of new species yet to evolve? Are we willing to accept the consequences of a large shift in the patterns of human habitation across the world?
It is by no means clear on what basis we ought to ethnically privilege the plants and animals that flourish under today’s climate over those that would flourish under a warmer, more volatile climate. However, adaptation will be feasible and is a necessity given the extent to which warming is now unavoidable. Slower GDP growth and thus slower climate change ought to make greater efforts at adaptation more attractive.
1. According to the passage, who hesitate(s) to adapt to the climate change?A.The government. | B.Climate experts. |
C.David Frost. | D.The activists. |
A.changeable | B.predictable | C.bearable | D.noticeable |
A.expressing doubts about people’s adaptability |
B.presenting examples of future climate patterns |
C.highlighting the consequences of human activities |
D.helping people decide on their openness to adaptation |
A.Slowing climate change deserves great efforts. |
B.Global warming is preventable to some extent. |
C.Adaptation to climate change is beyond question. |
D.Protection of the current species should be prioritized. |
Extreme heat is becoming increasingly common across the globe. It is an
1. What is the weather like in North China today?
A. | B. | C. |
A.-1℃. | B.2℃. | C.6℃. |
A.Go skiing. | B.Take warm clothes. | C.Confirm the flight. |
4 . California has lost half its big trees since the 1930s, according to a study to be published Tuesday and climate change seems to be a major factor(因素).
The number of trees larger than two feet across has declined by 50 percent on more than 46, 000 square miles of California forests, the new study finds. No area was spared or unaffected, from the foggy northern coast to the Sierra Nevada Mountains to the San Gabriels above Los Angeles. In the Sierra high country, the number of big trees has fallen by more than 55 percent; in parts of southern California the decline was nearly 75 percent.
Many factors contributed to the decline, said Patrick McIntyre, an ecologist who was the lead author of the study. Woodcutters targeted big trees. Housing development pushed into the woods. Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources(资源).
But in comparing a study of California forests done in the 1920s and 1930s with another one between 2001 and 2010, McIntyre and his colleagues documented a widespread death of big trees that was evident even in wildlands protected from woodcutting or development.
The loss of big trees was greatest in areas where trees had suffered the greatest water shortage. The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed, taking into account such things as rainfall, air temperature, dampness of soil, and the timing of snowmelt(融雪).
Since the 1930s, McIntyre said, the biggest factors driving up water stress in the state have been rising temperatures, which cause trees to lose more water to the air, and earlier snowmelt, which reduces the water supply available to trees during the dry season.
1. What is the second paragraph mainly about?A.The seriousness of big-tree loss in California. |
B.The increasing variety of California big trees. |
C.The distribution of big trees in California forests. |
D.The influence of farming on big trees in California. |
A.Ecological studies of forests. |
B.Banning woodcutting. |
C.Limiting housing development. |
D.Fire control measures. |
A.Inadequate snowmelt. | B.A longer dry season. |
C.A warmer climate. | D.Dampness of the air. |
A.California’s Forests: Where Have All the Big Trees Gone? |
B.Cutting of Big Trees to Be Prohibited in California Soon |
C.Why Are the Big Trees Important to California Forests? |
D.Patrick McIntyre: Grow More Big Trees in California |