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31. The oil spill will be an ecological catastrophe.

32. In sum, our nation was headed toward ecological disaster.

33. The basic ecological problem of limited resources remains.

34. Insects number countless millions, and perform vital ecological functions.

35. It commented, too, on the environmental and ecological consequences.

36. It's threatening to cause a huge ecological disaster.

37. Wheat is sheltered from ecological reality.

38. We know that there is an ecological problem.

39. The ecological problem forced itself on to our consciousness.

40. Creative solutions to our ecological problems?

41. They harvest its riches without destroying the ecological balance.

42. An ecological combo self-organizes itself on the land.

43. The ecological balance in the area could be destroyed.

44. Perhaps the most conspicuous flaw in reports of ecological apocalypse is lack of information.

45. The Global Communications Group links ecological and other political activists via the Net.

46. For any one ecological group, such as the dinosaurs[sentencedict.com], it is comparatively easy to find a possible cause.

47. The Ecological Impact of Nitrates Two rivers illustrate the impact of nitrate pollution.

48. By contrast, the appeal of the industrial co-operative remains unchallengeable, its ecological niche exclusive to it.

49. We could conceivably escape disaster, but we seem destined, absent real change, for ecological impoverishment.

50. The growing awareness of environmental and ecological issues often coincides with traditional beliefs and practices.http://Sentencedict.com

51. Out of this early ecological research has grown the whole field of environmental and dietary reconstruction discussed in Chapters 6 and 7.

52. Tex Slampacker was referring to yet another man-made ecological disaster.

53. It was certainly possible to study what would now be called ecological relationships before the founding of scientific ecology.

54. Ecological Science and Forestry Ecology is the scientific study of organisms in relation to the physical and biological environment.

55. Homoeopathy fits comfortably into a more natural, ecological view of the individual and the society in which he lives.

56. The second is to gain the knowledge and experience to maintain humans within equilibrium in a closed ecological system.

57. Paradoxically the ecological problems deriving from the application of artificial fertilizers are often equally complex and extensive.

58. Leopold suggested that indigenous people must instead have contributed to its ecological health and stability.

59. Junkers has come up with an ecological alternative to worktops made from tropical hardwoods.

60. The effluents we pour heedlessly into its waters are a threat to its delicate ecological balance.