Sentences with phrase «historic averages needed»

People trying to reconstruct historic averages needed a period in the modern record for comparison.

Not exact matches

The historic difference between the allotment ratio (one teacher for every 18 students) and the district average class - size limit (one teacher for every 21 students) meant that districts received one additional teacher for every six teachers needed to meet the district average class - size limit.

Based on the historic ratio of one enhancement teacher for every six teachers needed to meet the district average class size limit, schools will need an additional 4,720 teachers to meet 2018 - 19 class - size requirements while preserving enhancement classes for students in grades K - 3.

The share of income necessary to afford a typical U.S. rental home fell in Q4, to 29.2 percent, but remains higher than both historic averages and the share needed to afford a typical mortgage.

Taking account of their historic responsibility, as well as the need to secure climate justice for the world's poorest and most vulnerable communities, developed countries must commit to legally binding and ambitious emission reduction targets consistent with limiting global average surface warming to well below 1.5 degrees Celsius above preindustrial levels and long - term stabilization of atmospheric greenhouse gas concentrations at well below below 350 p.p.m., and that to achieve this the agreement at COP15 U.N.F.C.C.C. should include a goal of peaking global emissions by 2015 with a sharp decline thereafter towards a global reduction of 85 percent by 2050,

We actually need more in the atmosphere to get back to the geological historic average (~ 2500ppmv) then we would see real plant / crop growth.

The adjustments are needed partly because most weather stations in the 1800s and early 1900s were established in populated areas but there was a dearth of isolated inland thermometers and temperatures to build a true national average or historic comparison.

While many scientists and climate change activists hailed December's Paris agreement as a historic step forward for international efforts to limit global warming, the landmark accord rests on a highly dubious assumption: to achieve the goal of limiting the rise in global average temperature to less than 2 °C (much less the more ambitious goal of 1.5 °C), we don't just need to reduce emissions of carbon dioxide to essentially zero by the end of this century.

An Index reading below 100 indicates the amount of wages needed to afford a median - priced home is above the historic average for the market in question.

The average percentage of wages needed to afford a median - priced home across the counties analyzed in the Index was 36.9 percent in the fourth quarter, below the historic average of 39.1 percent.

The average age of these historic houses is 100 + years old, meaning there are definitely things that need to be repaired before they can go on the market.